Scientists Determine the Age of a Stellar Row in the Center of a Galaxy – Sciworthy

Galaxies are groups of stars held together by gravitational forces. Most galaxies originated in the first 200 million years after the Big Bang and have transformed over approximately 14 billion years. Early galaxies formed as aggregates of stars that clustered around the center of mass. In the youth of the universe, galaxies were in close proximity, exerting gravitational pull on one another. As the universe expands, the distances between galaxies have grown, reducing their interactions. They have remained far apart, allowing for internal development over billions of years.

Astronomers categorize galaxies based on their current shapes. Those resembling the Milky Way are termed spiral, while circular or oval-shaped ones are called elliptical. Galaxies that fall between spiral and elliptical forms are referred to as lenticular, and any that do not fit into these categories are labeled irregular. Over 75% of galaxies identified by astronomers are spiral in nature. If a spiral galaxy features prominent bars of stars and dust through its center, researchers classify it further as a barred spiral galaxy.

About 60% of spiral galaxies, including the Milky Way, exhibit galactic bars, designating them as barred spiral galaxies. These bars also serve as nurseries for star formation and are catalysts for the galaxy’s evolution. However, astronomers understand that galaxies do not inherently begin with these bars, prompting further investigation into the formation processes and timelines of these features.

This diagram illustrates the galactic classification system developed by 20th-century astronomer Edwin Hubble. The galaxy marked with the “E” label represents elliptical galaxies, while S0 indicates lenticular galaxies. The other “S” labels refer to spiral galaxies, with those labeled “SB” denoting a spiral structure. “Hubble tuning fork diagram” by cosmogoblin is licensed under CC0 1.0.

An international team of scientists researched the formation of bars in 20 galaxies near the Milky Way using advanced analytical techniques developed over the last four years. They gathered data from the TIMER space investigation, focused on the light emission patterns known as spectra from stars near the centers of these galaxies. The TIMER survey utilized the Very Large Telescope in Chile, equipped with a multi-unit spectroscopic explorer called MUSE.

The team initially struggled to obtain spectra for individual stars within these galaxies. As a reference, the closest galaxy studied was 7 megaparsecs away, approximately 23 million light years, or 130 million miles. Individual stars are too diminutive to distinguish at such distances, even with the most precise instruments.

To overcome this challenge, the team analyzed the spectra of stars within two concentric rings representing different regions at the centers of these galaxies. The inner ring comprised stars strictly within the bars of the galaxy, corresponding to an area known as the nuclear disk, while the outer ring included both inner and outer stars of the bar, referred to as the main disk.

They subtracted the spectrum of the stars in the inner ring from that of the outer ring, yielding two distinct light patterns: one for stars within the bar and another for stars outside of it. By treating the combined patterns of each ring as representative of typical stars in those regions, they could estimate the age of individual stars and ascertain when they formed. Past astrophysical models suggest that galaxy bars enhance the star formation rate around their centers. Hence, the team inferred the formation timing of galaxy bars as stars began to form more rapidly within those structures.

With this innovative approach, they estimated the age range for the 20 galaxies studied, with an error margin of approximately 1.5 billion years. Among their sample, the galaxy that formed bars most recently was 800 million years old. Out of the 20 galaxies, 14 formed bars approximately 7.5 billion years ago or later, while the remaining six galaxies established bars around 9.5 billion years ago, with the oldest estimates dating back 13.5 billion years. In contrast to earlier predictions, they found that larger galaxies do not necessarily possess older bars.

From the diverse ages of the bars observed, the team concluded that the formation of galaxy bars is an ongoing process in the cosmos. Their methodology provides astrophysicists with a means of gaining deeper insights into the dynamics of the early universe and the interactions between ancient galaxies, which connect to their present forms. By doing so, future research teams can establish a refined timeline for the universe and identify changes in how dominant forces have shaped galaxies, from their interactions to their internal structuring.


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Source: sciworthy.com

Explore Your Face Age and ID: The Upcoming Transformation of Internet Use in Australia

A
as the saying goes, “On the Internet, Nobody knows you’re a dog.” Yet in Australia, various platforms—from search engines to social media and app stores—may require confirmation of your age.

The Albanese government proudly announced the introduction of a law that prohibits under-16s from using social media, set to take effect in December. However, the new industry code created in collaboration with high-tech experts and eSafety Commissioner Julie Inman Grant may significantly influence how Australians navigate online.

Online services are implementing measures such as reviewing your account history, utilizing facial recognition age verification, and verifying age via bank cards. Identification documents, including driver licenses, will also be used to ensure compliance with the industry code effective since late June, and applicable to search engine logins starting in December.

The code mandates search engines to guarantee the age of all users. If an account holder is identified as under 18, the secure search function will activate, blocking access to adult content and other unsuitable material in search results.



Additionally, six more draft codes under consideration by the eSafety Commissioner will enforce similar age verification measures across various services regularly used by Australians.

Platforms that host or facilitate access to content like pornography, self-harming material, simulated violence, or any highly inappropriate content for minors must implement restrictions to prevent child access.

Last month, Inman Grant addressed the National Press Club, emphasizing the necessity for regulations to ensure child safety in all online spaces.

“It is vital to adopt a layered safety strategy that assigns responsibility and accountability to key chokepoints within the technology stack, such as app stores and device levels.”

The eSafety Commissioner previously announced intent behind the code during its development stage. Recent news coverage has renewed focus on its critical elements.

Some individuals welcome these changes. Recent reports indicate that Elon Musk’s AI Grok has integrated pornographic chat features. While Apple’s App Store is rated for ages 12 and up, advocates urge child safety organizations to reevaluate Apple’s ratings and enhance protective measures within its platform.

Both Apple and Google have begun implementing age verification at the device level, and apps may also be utilized to assess user age.






The app store has a “giant interference” to remove porn for profit.


Justin Warren, founder of Pivotnine, a tech analysis firm, commented that the code represents a significant shift in communication regulations among Australians.

“It seems like a considerable overreaction following years of policy stagnation regarding the influence of major foreign tech companies,” he stated.

“It’s darkly amusing that more authority over Australians’ online experiences will be handed to those same foreign tech giants.”

Digi, an industry organization collaborating with eSafety Commissioners to establish the code, has opposed the idea of diminishing online anonymity, clarifying that the code targets specific platforms that handle or grant access to certain content.

“The Code introduces proportionate safeguards for accessing pornography and materials considered inappropriate for users under 18, such as highly violent content,” remarked Dr. Jenny Duxbury, Director of Digital Policy at Digi.


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“These codes offer protective measures for specific circumstances rather than blanket identity verification requirements across the Internet.”

Duxbury noted that companies could utilize inference methods like account history and usage patterns to approximate users’ ages.

“Some services might opt for reasoning methods since they are effective and unobtrusive.”

However, those who attempt to implement such changes may be caught off guard, cautioned John Payne, chairman of Australia’s Electronic Frontier.

“It seems that many Australians are aware of the discussions around social media, but that’s not the case for the average person, especially when they’ll need to authenticate to access content rated for those over 18.”

Failure to adhere to the code could result in hefty penalties, including fines up to $49.5 million or social media bans. Further consequences may entail delisting from search results for non-compliant websites.

Payne advocates for introducing AI regulations that would prompt the federal government to reform privacy laws and enforce risk assessments for certain AI functions deemed as unacceptable risks.

He stresses the importance of legislating user care obligations for all digital service platforms.

“We believe this strategy would be more effective than relying solely on regulatory mandates,” he asserted.

Warren expressed skepticism, emphasizing that age verification technologies are effective, and highlighting that search engine codes were raised prior to the outcomes of the recent government review.

“Ultimately, theoretical applications must align with practical implementations.”

In response to a recent media report concerning the code, the eSafety Commissioner’s Office defended the age verification requirements for search engines.

“The sector’s code represents a critical opportunity to establish important safeguards, as search engines are key gateways for children to potentially harmful content,” stated the office.

Source: www.theguardian.com

Research Shows Accurate Age Predictions Can Be Made with Just 50 DNA Molecules

Researchers at Hebrew University leveraged a deep learning network to analyze DNA methylation patterns, achieving a time series age (defined as postnatal time) with median accuracy for individuals under 50 years, ranging from 1.36 to 1.7 years. result This work will be published in the journal Cell Report.



Utilizing ultra-depth sequences from over 300 blood samples of healthy individuals, the research indicates that age-dependent methylation changes happen in a probabilistic or coordinated block-like fashion across clusters of CPG sites. Image credit: Ochana et al., doi: 10.1016/j.celrep.2025.115958.

“We observe that our DNA leaves measurable marks over time,” commented Professor Tommy Kaplan from Hebrew University.

“Our model interprets these marks with remarkable precision.”

“The essence lies in how our DNA evolves through a process known as methylation – the chemical tagging of DNA by methyl groups (CH)3.

“By focusing on two vital regions of the human genome, our team successfully decoded these changes at the level of individual molecules, employing deep learning to generate accurate age estimations.”

In this research, Professor Kaplan and his team examined blood samples from over 300 healthy subjects and analyzed data from a decade-long study of the Jerusalem Perinatal Study.

The model developed by the team showed consistent performance across various factors, including smoking, weight, gender, and diverse indicators of biological aging.

In addition to potential medical applications, this technique could transform forensic science by enabling experts to estimate the age of suspects based on DNA traces.

“This provides us with a new perspective on cellular aging,” stated Yuval Dor, a professor at Hebrew University.

“It’s a striking example of the intersection between biology and artificial intelligence.”

Researchers found new patterns in DNA alterations over time, suggesting that cells encode both mature and tuned bursts, akin to biological clocks.

“It’s not solely about knowing your age,” explained Professor Ruth Shemmer of Hebrew University.

“It’s about comprehending how cells and molecules keep track of time.”

“This research could redefine our approach to health, aging, and identity,” added the scientist.

“From assisting physicians in treatment based on an individual’s biological timeline to equipping forensic investigators with advanced tools for crime-solving, the capability to decipher age from DNA paves the way for groundbreaking advancements in science, medicine, and law.”

“Moreover, it enhances our understanding of the aging process and brings us closer to unraveling our body’s internal clock.”

____

Bracha-Lea Ochana et al. Time is encoded by changes in methylation at clustered CPG sites. Cell Report Published online on July 14th, 2025. doi:10.1016/j.celrep.2025.115958

Source: www.sci.news

Ofcom Chief: Age Verification Crucial for Kids’ Online Safety

The UK’s primary media regulator has vowed to deliver a “significant milestone” in the pursuit of online safety for children, although it has cautioned that age verification measures must enforce stricter regulations on major tech firms.

Ofcom’s chief, Melanie Dawes, will unveil a new framework on Sunday. To be introduced later this month, marking a pivotal change in how the world’s largest online platforms are regulated.

However, she faces mounting pressure from advocates, many of whom are parents who assert that social media contributed to the deaths of their children, claiming that the forthcoming rules could still permit minors to access harmful content.

Dawes stated to the BBC on Sunday: “This is a considerable moment because the law takes effect at the end of the month.”

“At that point, we expect broader safeguards for children to become operational. We aim for platforms that host material inappropriate for under-18s, such as pornography and content related to suicide and self-harm, to either be removed or to implement robust age checks for those materials.”

She continued: “This is a significant moment for the industry and a critical juncture.”


Melanie Dawes (left) remarked that age checks are “a significant milestone for the industry.” Photo: Jeffover/BBC/PA

The regulations set to take effect on July 25th are the latest steps under the online safety law enacted in 2023 by the Conservative government.

The legislation was partially influenced by advocates like Ian Russell, whose 14-year-old daughter, Molly, tragically took her own life in 2017 after being exposed to numerous online resources concerning depression, self-harm, and suicide.

Minister Tory Removing certain bill sections has been criticized for potentially neglecting regulations on “legal but harmful” content in 2022.

Russell, who previously referred to the ACT as “timid,” expressed concerns regarding its enforcement by Ofcom on Sunday. He noted that while regulators allow tech companies to self-determine validation checks, they will evaluate the effectiveness of these measures.

Russell commented: “Ofcom’s public relations often portray a narrative where everything will improve soon. It’s clear that Ofcom must not only prioritize PR but must act decisively.”

“They are caught between families who have suffered losses like mine and the influence of powerful tech platforms.”

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Ian Russell, a father currently advocating for child internet safety, expressed concerns about the enforcement of the law. Photo: Joshua Bratt/PA

Russell pressed Dawes to leverage her influence to urge the government for more stringent actions against tech companies.

Some critics have charged the minister with leaving substantial regulatory loopholes, including a lack of action against misinformation.

A committee of lawmakers recently asserted that social media platforms facilitated the spread of misinformation following a murder in Southport last year, contributing to the unrest that ensued. Labour MP Chi Onwurah, chair of the Science and Technology Committee, remarked that the online safety law “is unraveling.”

Dawes has not sought authority to address misinformation, but stated, “If the government chooses to broaden the scope to include misinformation or child addiction, Ofcom would be prepared to implement it.”

Nonetheless, she called out the BBC regarding their handling of Glastonbury’s coverage, questioning whether the lead singer should continue broadcasting footage of Bob Dylan’s performance amid anti-Israel chants.

“The BBC needs to act more swiftly. We need to investigate these incidents thoroughly. Otherwise, there’s a genuine risk of losing public trust in the BBC,” she stated.

Source: www.theguardian.com

Why Knee Pain Increases with Age and How to Improve Flexibility

Atrophy can affect nearly every part of our body, but the knees bear a particularly heavy burden as they age. Why? Because they are intricate anatomical structures with numerous components that undergo constant wear and tear.

As we grow older, the muscles supporting our knees weaken, and bone density declines. The cartilage that cushions our bones may wear thin, and the ligaments connecting them also lose elasticity.

This leads to stiffness, pain, reduced mobility, and those involuntary sounds we all make when we rise from the sofa.

Fortunately, like any machine, our knees can thrive with proper care. Understanding the risk factors for knee injuries and osteoarthritis is a crucial first step.

The main threats to healthy knees include excess weight and footwear lacking adequate support for multiple joints.

For instance, in 2021, French researchers found that Parkour athletes experienced an average of 1.7 knee or ankle injuries per 1,000 hours of training.

While this might not sound alarming, it can lead to long-term damage—affecting more than just those jumping off risky buildings.

A study focused on elite dancers revealed that knee injuries, such as meniscus tears, are among the most prevalent injuries.

Activities that involve impact on the legs or require rapid direction changes can strain the knees significantly. A severe ACL injury can sideline football players for up to a year.

Moreover, research suggests that ten to twenty years post-injury, about half of those affected may develop osteoarthritis linked to their original injury.

There’s also an ongoing debate about whether running is beneficial or detrimental to knee health. For example, some claim running on pavement can be as punishing as hitting the soles of your feet with a hammer for an hour.

As you age, the muscles that stabilize your knees become weaker and bone density decreases – Illustration credit: Daniel Bright

However, a 2017 study found no significant differences in the risk of knee osteoarthritis between runners and non-runners.

In fact, exercise is believed to strengthen joints. A 2023 study indicated that individuals engaged in strength training are up to 20% less likely to experience osteoarthritis than those who do not.

Additionally, strengthening surrounding muscles, such as the quadriceps, appears beneficial. If you invest in properly fitting shoes and maintain a regular exercise routine, another key practice for knee care is recognizing mild discomfort.

Minor injuries can easily escalate into more serious, long-lasting conditions. If experiencing pain, consider using knee supports or opting for swimming.

Some research suggests that non-weight bearing activities, like swimming, can facilitate recovery from minor knee injuries and lessen the risk of long-term complications.


This article addresses the question posed by Thomas McPherson from Wakefield: “How do I take care of my knees as I age?”

Please email us to submit your questions at Question@sciencefocus.com or Message Facebook, Twitter or Instagram Page (don’t forget to include your name and location).

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“Embracing Our JRPG Passion: How Nostalgia from Gaming’s Golden Age Shaped Their Latest Singles”

IIf you were a fan of electropop in the early 2010s, there’s a good chance that Purity Ring holds a special place in your nostalgia playlist. Being a young adult during that time, it’s also likely you indulged in Japanese role-playing games as a teen. Their new single Many Lives aims to recapture the RPG vibes you embraced at 12, which became a defining part of your identity. Drawing inspiration from classics like Skies of Arcadia, Phantasy Star Online, and Secret of Mana, they are ready to resonate with fans from that era.

This marks a bold move for the band, who previously collaborated with Defoons, covering a Eurodance classic. Nonetheless, members Megan James and Corin Roddick possess the background needed to pull it off. “We are avid fans of the JRPG genre,” they share. Their recent tracks have drawn significant influence from titles like Nier: Automata and Final Fantasy X. “Now, we’re navigating metaphorically, crafting an imaginative take on the Persona Formula.”

After five years since their last studio album and a decade honing their craft through remixes, Purity Ring operates independently under their own label, The Fellowship. Their forthcoming album, set for release in September, is described as the “soundtrack to an imaginary RPG… A narrative following two unfortunate characters striving to create a kinder world amidst the remnants of a broken man.”

The album didn’t initially start as a video game soundtrack, but as production progressed, the vision became clear. This realization gave birth to “Many Lives” and its B-side, Part II. “Many Lives serves as a gateway to this imaginary realm and its nucleus—akin to the beginnings of most JRPGs, where characters embark on their adventures.”

The narrative revolves around the authentic experiences of Purity Ring during the album’s development, intertwined with the duo’s “memories, fears, and comforts.” “This album,” they explain, “explores how gaming provides a journey that facilitates creative renaissance.”

Upon first listen, what captivates in “Many Lives” is the hauntingly beautiful choir, reminiscent of the iconic soundtrack from Ghost in the Shell. This chilling introduction transitions into an energetic breakbeat, delivering tracks perfect for revisiting classic anime while immersed in Jet Set Radio. Purity Ring expresses their fondness for this era: “The Ghost in the Shell soundtrack masterfully combined visuals. Experiencing it as a child was unforgettable.” For this project, the duo revisited the anime, creating music that embodies the world alongside the beloved game Nier: Automata.

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Canadian electropop duo Purity Ring. Photo: Yuniverse

Much like a Kawai soundtrack, “Many Lives” features unforgettable vocals alongside Bulgarian folk music, enriched by James’s vocoded lyrics. Purity Ring is unafraid to explore unconventional instruments for inspiration. They state they aren’t reliant on hardware synths and don’t consider themselves technical gearheads. “The Legend of Zelda series has consistently inspired us,” they mention. “Particularly, the Ocarina music from the N64 title.” A hint of the 1998 Ocarina of Time melody resonates throughout the tracks, akin to a half-remembered tune that lingers in your mind.

If the nostalgic vocals and retro Casiotone MT-240 sound aren’t enough to transport you back to gaming’s golden days, the accompanying cel-shaded graphics in the video showcase the duo’s deep admiration for all RPGs. Directed by Mike Sunday, the visuals are inspired by GameCube’s Daydream, harking back to an era when game developers embraced style over realism. A blend of Shinjuku and Hyrule evokes the opening map of classic JRPGs. Purity Ring draws inspiration from their favorite titles from the PS2 and GameCube eras while also paying homage to the PlayStation Portable. The imaginary RPG UI seamlessly fits within some of the bestsellers of handheld gaming.

For me, “Many Lives” feels like the soundtrack to afternoons spent playing Baten Kaitos (a sequel is still on my wishlist). For Purity Ring, the track “evokes a blend of past, present, and future—nostalgia for something you’ve never experienced but somehow still recall.” They aim to position this upcoming album as a new chapter, capturing the essence of the era while evoking the sensation of experiencing a life-altering game for the first time.

Purity Ring will release their fourth self-titled album on September 26th.

Source: www.theguardian.com

Study Reveals Your Brain’s Biological Age Can Forecast Your Lifespan

Researchers have devised a technique to assess the biological age of the brain, revealing it to be a key indicator of future health and longevity.

A recent study involved an analysis of blood samples from 45,000 adults, with protein levels measured in over 3,000 individuals. Many of these proteins correlate with particular organs, including the brain, enabling the estimation of each organ system’s “biological age.”

If an organ’s protein profile significantly deviated from its expected age (based on birthday count), it was categorized as either “very matured” or “very youthful.”

Among the various organs assessed, the brain emerged as the most significant predictor of health outcomes, according to the research.

“The brain is the gatekeeper of longevity,” stated Professor Tony Wyss-Coray, a senior author of the newly published research in Natural Medicine. “An older brain correlates with a higher mortality rate, while a younger brain suggests a longer life expectancy.”

Participants exhibiting a biologically aged brain were found to be 12 times more likely to receive an Alzheimer’s diagnosis within a decade compared to peers with biologically youthful brains.

Additionally, older brains increased the risk of death from any cause by 182% over a 15-year span, whereas youthful brains were linked to a 40% decrease in mortality.

Wyss-Coray emphasized that evaluating the brain and other organs through the lens of biological age marks the dawn of a new preventive medicine era.

“This represents the future of medicine,” he remarked. “Currently, patients visit doctors only when they experience pain, where doctors address what’s malfunctioning. We are transitioning from illness care to wellness care, aiming to intervene before organ-specific diseases arise.”

The team is in the process of commercializing this test, which is anticipated to be available within the next 2-3 years, starting with major organs like the brain, heart, and immune system.

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Source: www.sciencefocus.com

A Study of 10,000 Individuals Reveals Strategies for Safeguarding Memory in Middle Age

A favorable perspective on life may safeguard against memory loss during middle age, as indicated by a recent 16-year study conducted by researchers from the UK, the US, and Spain.

Published in Aging and Mental Health, this study posits that a sense of happiness—which encompasses joy, confidence, purpose, and control over one’s life—is closely linked to improved memory recall.

Participants who rated their happiness levels higher tended to excel in memory assessments, regardless of whether they reported experiencing symptoms of depression.

“This study marks a vital advance in comprehending the relationship between happiness and memory over time,” stated the co-authors. Professor Joshua Stott, a Professor of Aging and Clinical Psychology at University College London, added, “It sheds new light on how self-reported happiness correlates with memory and vice versa.”

Researchers monitored 10,760 men and women over the age of 50 in the UK. Beginning in 2002, participants convened with the research team every two years to undergo memory evaluations.

During each session, they also completed a well-being survey, responding to prompts such as “I can do what I want to do” and “I feel that life is filled with opportunities.”

After 16 years, this data was examined by a team of 15 specialists to establish connections between cognition and memory.

“In light of an aging population, it’s vital to understand the factors that may protect and sustain healthy cognitive functions for the betterment of public health and policy development,” said Dr. Amber John, a lecturer in psychology at the University of Liverpool.

She noted that the study implies that overall well-being is more beneficial than merely better memory. If future research can demonstrate that improved health leads to Enhanced Memory, then prioritizing health could shield the brain from future deterioration.

Dementia and anxiety are commonly considered to accelerate cognitive decline in individuals with dementia. – Credit: J Studio via Getty

This study received partial funding from Alzheimer’s Disease Research UK. “We’ve observed significant financial support,” stated Emma Taylor, information services manager for the charity.

“It’s never too late to take measures to maintain our brain health throughout our lives and mitigate the devastating impacts of dementia.”

The authors of the study suggested that a decrease in psychological well-being could serve as an early indicator of potential cognitive decline, recommending strategies such as mindfulness as interventions to avert this trajectory.

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Source: www.sciencefocus.com

Destroyer World Review: Frank Close’s New Book Offers a Fresh Perspective on the Atomic Age

WHA2R6 Frederick and Irene Joliet Curie's Paris Institute

Irène Joliot-Curie and her husband Frédéric Joliot managed to observe neutrons during their experiments.

Smith Archives/Alamy

Destroyers of the World
Frank Close (Allen Lane (UK); Basic Books (US)

Upon receiving a diagnosis of non-Hodgkin’s lymphoma in 2023, particle physicist and Oxford University professor emeritus Frank Close underwent three weeks of radiation therapy, which provided him with a new understanding of radiation’s capabilities.

His 10-year-old grandson shared a detailed account of Emperor Bomba, a 50-megaton nuclear device tested by the Soviet Union in 1961, marking the most powerful human-made explosion. This prompted Close to elucidate the complexities of nuclear energy, highlighting its dual nature as both a power source and a peril.

A three-time winner of the British Science Writers Association Award, Close is well-versed in the intricacies of subatomic physics. His latest work, Destroyers of the World: Deep History of the Nuclear Age 1895-1965, starts with the Trinity Test Blast in July 1945, signifying the moment chemical explosions transitioned to nuclear ones. He takes readers on a historical journey beginning with 1896, when the first atomic traces sparked interest in the nuclear age.

The narrative features 19th-century scientist William Crookes, who delved into spiritualism after his brother’s death, observing “bright green clouds” in a gas-filled, charged vacuum tube. He believed he had synthesized external organisms and discovered phantoms. Theoretical physicist George Gamow is also mentioned, demonstrating that uranium can release charged alpha particles without contradicting energy conservation principles.

Close’s primary focus, however, revolves around the often-overlooked contributions of female physicists in the nuclear arena. He discusses Lise Meitner, who, despite holding a PhD, was banned from a male-only room at the University of Vienna. This didn’t thwart her efforts alongside Otto Hahn to provide X-rays for World War I injuries or her 1917 discovery of protactinium, element 91. In 1925, she was awarded the Lieven Prize, which marked a significant academic achievement.

He also highlights Elaine Joliot-Curie, the daughter of Marie Curie and Pierre Curie, who possessed her parents’ scientific prowess. In a notable scandal in 1910, Marie faced exclusion from the French Academy of Sciences due to her relationship with a married physicist. Elaine sought to defend her family’s legacy, underscoring work she conducted with her husband, Frédéric Joliot. The 1932 announcement of the neutron by James Chadwick shifted the course of nuclear physics.

Furthermore, Close examines the contributions of chemist Aida Noddack, who argued that uranium nuclei could be split into lighter isotopes but faced backlash from a male-dominated field. Noddack’s position as an industrial chemist challenged the established norms of elite nuclear physics.

In Destroyers of the World, Close also addresses the enigma surrounding Ettore Majorana, a theoretical physicist revered by Enrico Fermi, who mysteriously vanished in 1938. Speculation about Majorana’s fate has ranged from suicide to escaping fascism in Italy, but as with many similar cases, certainty eludes us.

As we navigate through the radioactive haze, one fact remains evident: many extraordinary individuals played pivotal roles in unleashing the Nuclear Demon from its confines.

George Bass is a writer based in Kent, UK.

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Pornhub Owners Suspend French Sites in Protest of New Age Verification Law

Visitors from France accessing adult sites like PornHub, YouPorn, and RedTube will encounter a message that criticizes the nation’s age verification laws, as announced by the company on Tuesday.

A spokesperson indicated that Iro, the parent company, has set a requirement for users to be 18 years or older, responding to French legislation mandating that adult sites implement stricter measures to verify the ages of their users.

“It’s clear that Iro has made the tough choice to restrict access for French users on platforms like Pornhub, Youporn, and Redtube. Tomorrow, we will utilize these platforms to directly engage with the French public,” stated a Pornhub representative on Tuesday.

Instead of providing a vast array of adult content on PornHub, Iro aims to “directly communicate with the French populace about the dangers and invasiveness of privacy, along with the ineffectiveness of French laws,” said Solomon Friedman, owner of Iro and a partner at Ethical Capital Partners, during a video call with reporters on Tuesday.

This year, France will gradually implement new requirements for all adult sites, enabling users to verify their ages using personal information such as credit cards and identification documents.

To safeguard privacy, operators are required to offer third-party “double-blind” options that prevent the sites from accessing users’ identities.

However, Iro contends that this approach is flawed and jeopardizes user data to potential threats, hacks, and leaks.

The company argues that France should focus on the developers of operating systems like Microsoft’s Windows, Apple’s iOS, and Google’s Android, rather than targeting pornographic platforms.

“Iro takes age verification seriously,” executive Alex Kekesi noted during a media call.

She emphasized that individual platforms carry a “significant risk” to privacy rights concerning age verification.

Friedman from ECP stated, “Google, Apple, and Microsoft have integrated features within their operating systems to verify a user’s age at the device level.”

The capacity to “supply age signals to any site or application” can enable control over access to adult content while keeping sensitive information private, offering a viable solution,” he argued.

“We recognize that these three companies are powerful, but that doesn’t excuse France’s actions,” he added.

Iro’s message to adult content viewers includes imagery promoting freedom, inspired by Eugene Delacroix’s renowned painting featuring nude figures.

Culture Minister Auroa Berge mentioned that if adult sites choose to block French users instead of adhering to the law, it would be “very positive.”

“Minors in France will have less access to violent, degrading, and humiliating content,” she remarked.

“If Iro prefers to withdraw from France rather than comply with our regulations, they are free to do so,” stated Clara Chappaz, the French Minister of Artificial Intelligence and Digital Technology, on X.

According to Arcom, 2.3 million minors visit porn sites each month, even though they are legally prohibited from doing so.

Elsewhere in the European Union, adult content platforms face increased scrutiny. EU regulators announced last month that several sites, including Pornhub, are under investigation for failing to uphold child protection regulations.

Source: www.theguardian.com

Face: An AI Tool That Reveals Biological Age from a Single Photo

Name: Face.

Year: New.

Exterior: A device designed to estimate your life expectancy.

So, is it going to tell me when I’ll die? No, thank you. Hold on, let me explain.

Not a problem, but that still sounds pretty terrifying. Just give me a moment. It operates similarly to what your doctor does.

Which is what? We will analyze your photos to evaluate your health.

Oh, that doesn’t sound too bad. However, this device can assess you even more accurately. It can also help predict your response to treatments.

Nope, I’m out again. Let me elaborate. Faceage is an AI innovation developed by scientists at Mass General Brigham in Boston. By examining a picture of your face, it can assess your biological age compared to your chronological age.

What does that imply? It means everyone ages differently. For instance, at 50, Paul Rudd had a biological age of 43, while fellow actor Wilford Brimley was biologically 69 at the same age.

Why is this significant? Individuals with older biological ages are less likely to withstand intensive treatments like radiation therapy.

Explain it to me as if I’m clueless. Sure thing. The older your face looks, the worse it is for your health.

Great, just what I needed to hear about my premature grey hairs. Actually, not exactly. Features like gray hair or hair loss can be misleading. This device evaluates factors like skin folding near the mouth and temple hollows for a more accurate health profile.

Wonderful, now I have to obsessively analyze my temple’s condition. No, this is beneficial. With proper usage, such diagnostic tools can enhance countless lives. Although the initial study focused on cancer patients, researchers intend to broaden the tests to others.

I just had plastic surgery. Will Faceage still work for me? As of now, it’s unclear. The developers still need to investigate this.

What about for people of color? Ah, yes. This model was predominantly trained on white faces, so its effectiveness on diverse skin tones is still uncertain.

This sounds a bit concerning. It’s simply a cautionary issue. Let’s consider how quickly AI evolves. Just last year, ChatGPT was lacking but has now transformed industries. We can expect Faceage to improve rapidly, too.

That’s encouraging. Indeed. Before long, it could assess your face and provide a calm, unbiased judgment on your health and longevity.

Is this for real? No, definitely not. At least, not yet.

Say: “Faceage represents a new frontier in medical diagnostics.”

Don’t say: “They claim we’ll perish during the 2028 robot uprising.”

Source: www.theguardian.com

David Paton, the visionary behind the Flying Eye Hospital, passes away at age 94

David Patong, an innovative and ideal ophthalmologist, initiated Project Orvis, where he transformed United Airlines jets into flying hospitals, transported surgeons to developing nations, trained local doctors, and passed away on April 3 at his residence in Reno, Nevada.

His son Townlee confirmed his demise.

Dr. Patong (pronounced Pay-Ton), the son of a renowned New York ophthalmologist and descendant of Iranian Shah and financier J. Pierpont Morgan, taught at the Wilmer Eye Institute at Johns Hopkins University in the early 1970s. He was disheartened by the rising number of preventable blindness cases in remote regions.

In his memoir “Second Sight: A View from The Anay Doctor’s Odyssey” (2011), he wrote, “We needed more ophthalmologists… but also needed to enhance medical education for existing physicians.”

Considering various options like shipping equipment trunks and using medical ships similar to Project Hope, he ultimately founded Project Orvis in 1973 with the support of wealthy individuals like Texas oilmen Leonard F. McCollum and Betsy Trippe Wainwright.

After the moon landing in 1969, Dr. Patong believed that the concept of Moonshot was feasible. He envisioned converting large aircraft into operating rooms, educational classrooms, or any required facility.

He relentlessly sought ways to obtain an airplane, approaching the military and universities without success. Dr. Patong, described by Bruce Spivey as charming and unrelenting, eventually raised the necessary funds himself.

In 1980, with the help of Betsy Trippe, he secured a donated DC-8 Jet from United Airlines to create a flying hospital. This marked the beginning of life-changing missions to various countries where local health workers witnessed surgeries in specially-equipped classrooms onboard.

The Flying Eye Hospital facilitated surgeries in multiple nations like Peru, Jordan, and Nepal, receiving visits from prominent figures like Mother Teresa and Fidel Castro. Their impactful work caught the attention of media outlets like the Sunday Times, sharing stories of patients like Julia.

Julia’s transformative surgery showcased the effectiveness of their efforts in restoring vision to the visually impaired. Despite challenges, the procedure led to profound moments of discovery for Julia as she regained her sight gradually.

Born on August 16, 1930, in Baltimore, David Paton hailed from a family with a rich medical background. His upbringing in Manhattan and exposure to eminent personalities shaped his journey towards medical innovation.

His formative years were filled with experiences among intellectuals and socialites, leading to his academic pursuits at Hill School and Princeton University. He maintained close ties with lifelong friend James A. Baker III while excelling in his medical career.

In addition to his contributions to Project Orvis, Dr. Paton served as a distinguished medical director in institutions like King Khaled Eye Specialist Hospital. His dedication to providing eye care to royalty in Saudi Arabia reflected his commitment to improving global healthcare.

Although his formal ties with Project Orvis ended in 1987, Dr. Patong continued to offer guidance informally. The organization, now known as Orbis International, has expanded its operations with a fleet of planes and a robust track record of surgeries and training sessions.

Orbis International’s enduring impact is a testament to Dr. Patong’s visionary approach to healthcare. The organization’s innovative use of airplanes as a platform for medical missions has revolutionized the way eye care is delivered globally.

Source: www.nytimes.com

Ancient Ice Age civilizations constructed elaborate fireplaces primarily fueled by wood burning

Archaeologists discovered and analyzed three hearths at the Upper Paleolithic site of Korman ‘9 (45,000-10,000 years ago) on the right bank of the Dniester River in Ukraine. Their findings show that ice age humans built different types of hearths, using mostly wood, but perhaps using bones and fat to burn fire.

Murphy et al. Provides a high-resolution Earth Character Study on three combustion features related to the profession of Epigravet on the Kolman 9 site in Ukraine, with age dropping to the last glacial maximum.

It is widely assumed that an important tool for human survival, especially in cold weather, is the ability to create, maintain and use fires.

Many literature provides data on the benefits of fire use regarding human evolution and its fundamental function in everyday life.

More recent research also shows the labor-intensive nature of using fireworks. The implication of fire use was not only an essential survival tool, but also played an important role in the way hunter-gatherer groups organize themselves.

This includes how hunter-gatherers acquire resources such as wooden fuel, how to initiate and maintain a fire if they store or cache fuel materials for future use, or how sites and activities are organized around the combustion function.

“The fire didn’t just keep it warm. It was also essential for cooking, making tools and social gatherings,” said Dr. Philip R. Nigust, an archaeologist at the University of Vienna.

“We know that fires have spread around this period, but there is little evidence from the height of the ice age,” added Dr. William Murfrey, an archaeologist at the University of Algarve.

In the current study, the researchers focused on the archaeological site of Komann 9 in Ukraine.

“Korman ‘9 is an Upper Paleolithic site on a north facing terrace on the right bank of the Dniester River in Ukraine,” they said.

“This site was discovered in 2012 while researching a site along the Dniester River.”

Through microstratigraphic analysis, microtransfer and colorimetric analysis, scientists have identified three flat wood furnaces.

One interesting discovery to come is that these fires have reached temperatures above 600 degrees Celsius, demonstrating a sophisticated mastery of fireworks even in the face of extreme environmental stresses.

The analysis also shows that humans use wood as the main fuel during peak ice ages, and charcoal analysis indicates spruce wood. However, other fuels such as bones and fat may be used.

“Some of the animal bones found on the site were burned in the fire at temperatures above 650 degrees Celsius,” said Dr. Majolaine D. Bosch, a museum of the University of Vienna zoo physician, Austrian Academy of Sciences and the Museum of Natural History.

“We are currently investigating whether they are being used as fuel or if they were accidentally burned.”

All three fireplaces are open and flat. However, the new results suggest that fire use was refined as it is likely that fireplaces were constructed and used in different ways each season.

One of the three fireplaces is large and thick, suggesting that a higher temperature was achieved here.

“People had full control over the fire and knew how to use it in a variety of ways depending on the purpose of the fire,” Dr. Nigust said.

“However, our results also show that these hunter-gatherers used the same location at different times of the year during their annual migration.”

Survey results Published in the journal Geography.

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William Chase Murfrey et al. 2025. The use of fires during the last Glacier largest era: evidence from the epigravet of Kolmann 9 in the Middle Donierster Valley in Ukraine. Geography 40(2): E70006; doi: 10.1002/gea.70006

Source: www.sci.news

The overlooked nutrient that can play a vital role in preserving brain health as you age

Vitamin K is a crucial nutrient primarily found in green vegetables and may play a vital role in safeguarding the brain from cognitive decline.

Recent research suggests that vitamins, particularly vitamin K, could help in preserving the cells of the hippocampus, which is the brain’s memory center.

In a recent study, scientists conducted an experiment where 60 middle-aged mice were fed either low or regular diets supplemented with vitamin K for six months. Subsequent behavioral tests revealed the impact of vitamin K on mouse learning and memory.

The study showed that mice lacking vitamin K struggled with memory and learning tasks. Compared to mice on a regular diet, those deficient in vitamin K had difficulty recognizing familiar objects, indicating memory loss. They also faced challenges in spatial learning tasks, as evidenced by their performance in a water maze.

Green vegetables like spinach, kale, lettuce, Brussels sprouts, broccoli, and cabbage are excellent sources of vitamin K. Avocados and kiwi fruits also contain high levels of this nutrient – Credit: Mediterranean via Getty

Further analysis of the mice’s brain tissue revealed reduced neurogenesis in the hippocampus of vitamin K-deficient mice. Neurogenesis, the process of generating new neurons, is essential for maintaining brain health and protecting against damage.

“Neurogenesis is believed to be crucial for learning and memory functions, and its impairment may contribute to cognitive decline,” stated Ton Zheng, a research scientist at Tufts’ Center for Human Nutrition (HNRCA).

In addition to reduced neurogenesis, the brains of vitamin K-deficient mice also showed signs of inflammation, further linking vitamin K deficiency to cognitive decline.

While the study highlights the importance of vitamin K, researchers emphasize the significance of obtaining nutrients from a balanced diet rather than relying on supplements.

“It’s essential for people to consume a healthy diet rich in vegetables,” advised Professor Sarah Booth, senior author of the study and director of the HNRCA.

Most individuals typically obtain sufficient vitamin K from their diet, with sources like spinach, kale, peas, Brussels sprouts, broccoli, cabbage, parsley, avocados, and kiwi. However, older adults are more prone to vitamin K deficiency.

The study was recently published in the Journal of Nutrition.

Read more:

Source: www.sciencefocus.com

For centuries, the Iron Age site functioned as a purple dye factory

Stoneware with purple dye residue found at Tel Shiqmona, Israel

Maria Bukin/Shalvi et al. , 2025, Plos One, CC-By 4.0

For centuries, modern Israeli coastal settlements have been home to industrial scale production from marine snails of purple dye, one of the most precious commodities in the ancient world.

Known as Tyrian Purple, it was particularly sought to color wool fabrics, and was highly regarded by wealthy and powerful people in Iron Age Mediterranean society. However, up until now, direct evidence of large-scale production sites has been sparse.

From 1100 BC to about 900 BC, Tel Shiqmona was a small Phoenician fishing village, producing small scale purple dyes. Later, when the Kingdom of Israel began to expand, the site said it had “transformed from a fishing village into a fortified purple dye production centre. Golan Charvy At the University of Chicago.

During archaeological research at the site, Sharvi and his colleagues discovered the remains of dye-dyed debris used to treat the material. 176 artifacts related to the production of purple dyes were collected, including 135 purple dye items.

The dye secretes mucus to protect itself and to kill prey. “The secretion is initially a slightly greenish fluid that oxidizes upon exposure to air and gradually turns purple,” says Sharvi. “However, to convert it into a real dye (something that chemically binds to textiles), it must be processed into solution through a complex series of chemical steps.”

Researchers argue that Tel Shiqmona is the only site in the world with clear evidence of the large-scale production of purple dyes in specialized facilities for a long time.

However, there is no historical record linking the site to the dye, and little is known about the actual process used to manufacture it, Shalvi says.

After the Kingdom of Israel fell around 720 BC, the scale of dye production fell until the Assyrians took over the site and increased the process again. When the Babylonians conquered the area around 600 BC, dye production at Tel Shiqmona was abandoned.

“It was most industrial sites in the Iron Age, and there was no monumental architecture or any particular beauty or elegance,” says Sharvi. “I think it’s a very smelly place, especially in modern noses, as the production process has produced a terrible smell. I imagine wool fleece dyed in various shades that are dry on the outside and inside of the building.

Purple dyes have captivated people all over the world, he says, and it has been the subject of extensive research. “The relationship with elite classes and religious rituals has grown in cultural, symbolic and economic significance, far beyond its function as mere colour.”

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Source: www.newscientist.com

Rome’s Collapse Linked to Mini Ice Age Triggered by Ancient Geological Event

SEI 246262600

Iceberg calving from a Greenland glacier can carry rocks to distant coasts

Professor Ross Mitchell

The rocks transported by icebergs from Greenland to Iceland add to evidence that the European climate became much colder for a century or two in 540 AD.

This cold season in the Northern Hemisphere has been shown previously by research on tree rings and sediment cores, but is linked to many historical events around the world, from the collapse of the northern WEI dynasty in China to the decline of the city of Teotihuacan, Central America. The Justinian plague that affected the Eastern Roman Empire after the collapse of the Western Roman Empire in 476 may also have been caused in part by cold weather.

Christopher Spencer Queen’s University in Kingston, Canada and his colleagues decided to explore Iceland’s west coast beaches, as they showed it was a light colour, rather than the basalt black of almost every other beach in Iceland.

Its bright colour turned out to be due to the presence of many shells, but while walking through the area, Spencer spotted a cobblestone-sized granite stone. It was immediately clear to him that these rocks were not from Iceland. “It’s a bit embarrassing how easy it is to make a discovery,” he says.

Sure enough, analysis of the rocks confirmed that they came from various parts of Greenland. Greenland is the closest point, about 300 km from Iceland. So, Spencer must have been carried by icebergs spotted and washed away on the beach from Greenland’s glacier.

The beach formations where Greenland rocks reside were previously dated from AD 500 to AD 700, says Spencer. Greenland icebergs can still reach this area, but Greenland Rock has not been found in other layers of the beach.

An ancient rock collection analyzed in the study was traced to Greenland

Dr. Christopher Spencer

Therefore, this finding indicates that numerous Greenlandic Icebergs were washed away at this beach during the period when this layer was formed. This suggests that because of the cold conditions, Greenland’s glaciers grew larger during this period, hiding more icebergs, says Spencer.

This is neatly linked to evidence of cold seasons, sometimes known as the late antique red ice age. The cause of this event is unknown. Some people think it was caused by volcanoes, while others think it was caused by a surprising piece of Earth from a comet. Spencer believes that the solar heat is simply dependent on changes in the orbit that reaches Earth.

The extent to which climate contributed to events such as the collapse of Rome remains debated, but there is growing evidence that climate change has shaped the fate of many civilizations.

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Source: www.newscientist.com

During the Mesolithic Age in East Asia, the discovery of stone tools reveals a complex range of human dynamics

The Mid-Lestic Age is considered a dynamic period in European and African history, but is generally considered a static period in East Asia. The discovery of a series of refined stone tools at Long Tang Sight in southwestern China, 50,000-60,000 years ago, challenges that recognition.



A product from the Quina system located at Longtan Site, China. Image credits: Luan et al. , doi: 10.1073/pnas.2418029122.

The Paleolithic period in the Central era occurred about 300,000-40,000 years ago and is considered an important time in human evolution.

This period is related to the origins and evolution of modern African people.

In Eurasia, it is associated with the development of several archaic human groups, such as the Neanderthals and Denisovan.

However, there is a widely believed belief that in most of the Paleostemic period, China’s development had slowed.

“Our discoveries challenge our current understanding of human history and technological development in East Asia,” said Professor Beau Lee of the University of Wollongong.

“This finding challenges a long-established general theory among archaeologists that China-China tools are relatively simple and unchanged.”

Professor Li and colleagues unearthed a rich collection of stone tools at the Longtan archaeological site in Yunnan, China.

This tool revealed a complete kina technology system that includes the cores used to generate large and thick flakes.

The Kina Industry is one of the most representative tool creation strategies developed in the Mid Paleolithic period around 300,000-40,000 years ago.

It is characterized by a steeply scaled retouch of thick flakes, which often produces robust scrapers with heavy edge modifications associated with neanderthals, representing strategies developed during marine isotope stage 4 as a response to open forest grassland environments and cool/dry climates.

The Kina Technical System was discovered in Western and Southern Europe during this period, but was not thought to have existed in East Asia.

The wear traces of Longtanquina scrape suggest that they are used in a variety of materials, including bones, horns, wood, meat, skin, and non-slow plants.

“Evidence has shown that the discoveries at Longtan significantly broadened the geographical distribution of human species, the tools used, and the adaptability to adapt to a variety of climates and environments,” Professor Li said.

“The discovery of Longtan also provides a perspective to understand how the human-leeze species evolved and evolved in East Asia prior to the massive arrival of early modern people 45,000 years ago.”

“Understanding rather old artifacts forces us to rethink models of human migration patterns and technology evolution in this part of the world.”

“This opens an exciting new avenue for research and, as we know, can rewrite East Asia’s prehistoric period.”

a paper The survey results were published this week Proceedings of the National Academy of Sciences.

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Qi-Jun Ruan et al. 2025. Kinarithic technology demonstrates the diverse late Pleistocene human dynamics of East Asia. pnas 122 (14): E2418029122; doi: 10.1073/pnas.2418029122

Source: www.sci.news

Are you consuming the wrong amount of protein for your age? Here’s why.

Protein Church has seen a recent surge in young worshippers, with Andrew Scott leading the services.

According to a survey by the CS Mott Children’s Hospital in Michigan, two in five Americans aged 13 to 17 reported consuming protein supplements like shakes and powders last year.

An investigation by online supermarket Ocado found that 62% of UK Z and millennials increased their protein intake last year.

On foodie Tiktok, dishes like black bean pasta, tofu-filled pasta sauce, and chickpea and cashew chocolate brownies are gaining popularity.

Cottage cheese has become a favorite due to its high protein content, with a 97% increase in demand reported by Ocado.

While young adults are focusing on consuming more protein, older adults are falling short of the recommended intake levels.

Research from the University of Birmingham in 2020 showed that older adults consume less protein than middle-aged adults.

Another study in 2020 by the University of Sheffield found that only a small percentage of adults over 65 met the daily protein recommendations.

It’s evident that while young people are increasing their protein intake, older adults are struggling to meet their protein needs.

Why middle-aged adults need more protein

Professor Elizabeth Williams from the University of Sheffield explains that protein requirements vary throughout life, with older adults needing more protein to combat reduced protein synthesis efficiency.

Other factors like muscle loss and anabolic resistance in older adults contribute to the need for higher protein intake.

As we age, our bodies need more protein, especially postmenopausal women, as hormonal changes can lead to increased muscle loss. – Credit: Hispanoristic via Getty

Why seniors struggle to eat enough protein

Anabolic resistance and sarcopenia worsen with age, especially among less active individuals, making it crucial for seniors to consume sufficient protein.

Dr. Connor Carrey emphasizes the importance of protein intake for older adults to maintain muscle mass and functional levels.

Not consuming enough protein can lead to muscle loss and bone health issues in older adults.

Elderly individuals and those with fragile health find it challenging to meet their protein requirements.

How much protein is enough?

Protein intake is usually measured in grams per kilogram of body weight, with recommended daily amounts varying for different age groups.

For older adults, experts recommend a higher protein intake of around 1-1.2g/kg per day to support muscle health and prevent muscle loss.

Increasing protein intake through meals like eggs can help middle-aged and older adults maintain muscle mass.

Breakfast is a meal when many of us are protein deficient. This means providing an opportunity to redress the balance.

How to eat enough protein for better health

Eating protein-rich foods like eggs for breakfast can help improve protein intake and support muscle health.

Experts recommend consuming 25g of protein in each meal to maintain muscle mass and overall health.

Switching to protein-rich breakfast options like eggs, yogurt, or nuts can help individuals increase their daily protein intake.

For those struggling to consume large quantities of protein, liquid sources like milk and dairy products are recommended.

Read more:

About our experts:

Professor Elizabeth Williams is a nutrition science professor at the University of Sheffield, specializing in diet-related chronic diseases and healthy aging.

Dr. Connor Carrey is a postdoctoral researcher and nutrition instructor focusing on proteins at University College Cork.

Amani Kite is a functional nutritionist specializing in intestinal, hormonal, and metabolic health.

Source: www.sciencefocus.com

Kilmer McCurry, a pathologist known for his groundbreaking theory on heart disease, passes away at age 91

In the 1960s and 1970s, Kilmer S. McCurry, a pathologist at Harvard Medical School, was controversially expelled into the basement. He claimed that the amino acid homocysteine had been overlooked as a potential risk factor for heart disease.

His daughter, Martha McCurry, later revealed that he passed away due to metastatic prostate cancer. His death was not widely reported at the time.

Dr. McCurry’s theory, which is still debated, suggested that inadequate vitamin intake could lead to high homocysteine levels in the blood, causing plaque buildup and artery stiffening. This challenged the prevailing cholesterol-centric view supported by the pharmaceutical industry.

Although Dr. McCurry acknowledged the importance of cholesterol, he believed homocysteine should not be ignored. However, his superiors at Harvard disagreed, leading to his lab being moved underground and eventually being told to leave.

In a 1995 interview, Dr. McCurry described his experience as “very traumatic.” He felt isolated and misunderstood by his peers.

At a medical conference in Boston, Dr. McCurry learned about Homocystinuria, a genetic disorder linked to high homocysteine levels. This discovery sparked his interest in the role of homocysteine in disease.

One case involving a young girl with homocystinuria who had a family history of the disease stood out to Dr. McCurry. This prompted him to further investigate the connection between homocysteine and artery stiffness.

“How did an 8-year-old die in the way an elderly man?” Dr. McCurry wrote in The Heart Revolution, recalling the incident that led to his controversial research.
credit…HarperCollins

After studying tissue samples, Dr. McCurry found evidence that homocysteine could lead to artery stiffening without cholesterol or fat buildup. This discovery further fueled his research into homocysteine’s role in heart disease.

The rejection of Dr. McCurry’s theory in the 1960s and 1970s took a toll on his career. He struggled to find employment for years after leaving Harvard.

Despite facing resistance, Dr. McCurry continued his research on homocysteine and its impact on heart health. His persistence ultimately paid off, as studies in the 1990s confirmed his earlier findings.

Dr. McCurry’s work shed light on the importance of homocysteine as a marker for cardiovascular disease risk. His perseverance and dedication to his research have since been acknowledged by the medical community.

Dr. McCurry’s early research laid the foundation for later studies linking homocysteine levels to heart disease risk. Subsequent investigations have supported his initial claims, validating his work and legacy in the field of cardiology.

Despite initial skepticism, Dr. McCurry’s contributions to the understanding of homocysteine have been recognized by the medical community. His insights have paved the way for further research into the role of this amino acid in cardiovascular health.

Dr. McCurry’s groundbreaking work continues to inspire researchers and clinicians to explore the complex relationship between homocysteine and heart disease. His legacy lives on in the ongoing pursuit of innovative approaches to cardiovascular care.

Source: www.nytimes.com

Are We Overly Concerned About Misinformation in the Age of Technology?

on On October 30, 1938, an American radio station aired a drama adaptation of HG Wells’ apocalyptic novel “War of the Worlds.” Some listeners were unable to differentiate between reality and fiction. Reports surfaced of panicked audiences mistaking it for breaking news. Academic research later estimated that over a million people thought they were witnessing an actual Mars invasion.

This incident highlights how misinformation can easily take root. Despite claims of mass panic, the reality is questioned. A national radio audience survey revealed that only 2% reported tuning into the broadcast, recognizing it as a work of fiction. Many attributed the panic to “The Play” or narrator Orson Wells rather than actual news reports. The confusion stemmed from listeners misinterpreting the drama as a real-life invasion.

Nearly a century later, misinformation remains a prominent issue. Headlines often report millions being exposed to false information online. A 2018 Gallup survey found that two-thirds of Americans encounter misinformation on social media. However, similar to the War of the Worlds broadcast, misinformation may not be as widespread as believed. Visits to reliable news sources increased significantly compared to unreliable ones during events like the Covid spread in spring 2020.

Complete misinformation may be more uncommon than assumed. Navigating between facts and fiction requires avoiding two errors. Believing in falsehoods or distrusting all information can both lead to challenges. Instead, finding ways to manage the risks associated with trusting information is crucial to discerning truth in the midst of a vast sea of data.

Rather than blindly accepting or rejecting information, we should develop tools to identify flawed assumptions and misinterpretations. Misinformation is not just about inaccurate facts but also about misinterpretations drawn from technically accurate information. We must equip individuals to discern distorted narratives, cherry-picked data, and hidden assumptions when navigating through the digital landscape.

Addressing false beliefs online requires more than labeling content as “misinformation.” It involves empowering individuals to critically assess and interpret information accurately. Striking a balance between trusting too much and distrusting everything is essential for combating false beliefs effectively in the digital age.

Adam Kucharski is a professor at the London School of Heig.Iene and Tropical Medicine, and authors Proof: The Uncertain Science of Certification (profile).

Read more

distrust: What makes reasonable people believe in irrational things by Dan Alleye (Heligo, £10.99)

An era of overthinking magic Amanda Montell (Atria, £10.99)

The art of uncertainty David Spiegelhalter: How to Navigate Chance, Ignorance, Risk, and Luck (Pelican, £12.99)

Source: www.theguardian.com

Baratoro takes on Pegi: A battle against ineffective video game age ratings

In recent months, game makers have faced challenges with age classifications for video games. Age ratings are meant to assist parents in determining if a game is suitable for their children. However, incorrect labels can mislead consumers and impact the success of a game.

Balatro is a poker game created by an anonymous developer known as LocalThunk. The game relies on chaos, with constantly changing conditions that challenge players to form the best possible poker hands. Players earn in-game money to buy new cards during each round, adding an element of strategy. Despite its initial success, Baratoro faced classification issues when it was labeled as a gambling game.

Originally rated for ages 3 and older, the game was later reclassified as suitable for adults only. This decision caused Baratoro to be removed from digital storefronts in Europe and Asia. The publisher, PlayStack, appealed the decision but faced obstacles in various regions.

Ultimately, after updates and appeals, Baratoro received a Pegi rating of 12 or higher, resolving the classification issue. The experience highlighted the challenges of rating systems and the impact they can have on game sales.

Pegi clarified its standards for assessing games that depict gambling, aiming to provide fair and accurate classifications. The case of Baratoro led to the development of a more detailed classification system for games involving gambling.

While the reclassification brought relief to publishers, it also raised questions about age rating systems and their ability to inform consumers about game content. The evolving nature of rating systems reflects the need to adapt to changing cultural expectations in the gaming industry.

Balatro’s journey highlights the importance of clear and accurate age classifications for games and the ongoing need to ensure that players understand the content they are engaging with.

Source: www.theguardian.com

Advancements in Dementia Research: Science can now accurately assess the “biological age” of your brain

If you’re like Khloe Kardashian, who recently turned 40, you may have considered testing your biological age to see if you feel younger than your actual age. But while these tests can tell you a lot about your body’s aging, they often overlook the aging of your brain. Researchers have now developed a new method to determine how quickly your brain is aging, which could help in predicting and preventing dementia. Learn more here.

Unlike your chronological age, which is based on the number of years since you were born, your biological age is determined by how well your body functions and how your cells age. This new method uses MRI scans and artificial intelligence to estimate the biological age of your brain, providing valuable insights for brain health tracking in research labs and clinics.

Traditional methods of measuring biological age, such as DNA methylation, do not work well for the brain due to the blood-brain barrier, which prevents blood cells from crossing into the brain. The new non-invasive method developed at the University of Southern California combines MRI scans and AI to accurately assess brain aging.

Using AI to analyze MRI brain scans, researchers can now predict how quickly the brain is aging and identify areas of the brain that are aging faster. This new model, known as a 3D Convolutional Neural Network, has shown promising results in predicting cognitive decline and Alzheimer’s disease risk based on brain aging rates.

Researchers believe that this innovative approach can revolutionize the field of brain health and provide valuable insights into the impact of genetics, environment, and lifestyle on brain aging. By accurately estimating the risk of Alzheimer’s disease, this method could potentially lead to the development of new prevention strategies and treatments.

Overall, this new method offers a powerful tool for tracking brain aging and predicting cognitive decline, bringing us closer to a future where personalized brain health assessments can help prevent and treat neurodegenerative diseases.

For more information, visit Professor Andrei Ilimia’s profile here.

https://c02.purpledshub.com/uploads/sites/41/2025/02/MRI-scan.mp4
Using AI to analyze MRI brain scans, you can see how quickly your brain is aging.

Source: www.sciencefocus.com

The best-preserved ice age animal ever found

There have been numerous ice age animals recovered from the world’s permafrost, ranging from woolly rhinos and wolves to urus, brown bears, and bison. Despite some being slightly damaged, they are often found in excellent condition.

One remarkable discovery was in 2017 when scientists excavated the remains of a small cave lion named Sparta from a frozen bank on the Siberian River. Although its golden fur was muddy and matted, its skin, soft tissue, and organs were all preserved. With closed eyes, it appeared more like a sleeping animal than one that had been dead for 28,000 years.

Another notable find was a two-month-old horse that died 35,000 years ago and was uncovered in Siberia in 2018. Though some fur was missing, the animal was largely intact, with hooves, skin, tail, and nostril hair preserved.

Various well-preserved woolly mammoths have also been discovered, some with grass in their mouths, milk in their bellies, and even dung on their bellies. While videos show people cutting into frozen mammoth carcasses and finding meat that looks fresh, the appearance can be deceiving.

Many animals found from the Ice Age are well preserved on the outside, but on the inside is a different story – Credit: Grafissimo

While these ice age animals and their tissues may appear well-preserved superficially, zooming in reveals a different story. The lack of antifreeze agents when freezing live cells causes ice crystals to form, leading to cell bursting.

Although tissues and organs may seem intact, the cells that form them are not. The damage to these cells has occurred over the thousands of years since the last ice age ended. While these ancient animals may seem well-preserved on a larger scale, they are damaged at a microscopic level.

The most well-preserved ice age beasts are likely those with intact cells, which died closer to the end of the last ice age and have been frozen since. One such candidate is a 9,000-year-old bison discovered in the Russian Far East in 2022, which may have cells viable for cloning attempts.

However, cloning attempts on ice age animals have so far been unsuccessful due to DNA deterioration after death. Despite the optimism, the chances of successful cloning are slim. For now, appreciating these mummified artifacts as they are offers a fascinating glimpse into the ancient past.


This article is the answer to the question (asked by Ben Schofield).

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Source: www.sciencefocus.com

New research reveals the impact of global warming on the pace of the next ice age

Glacier Age Earth

Zoonar/Alexander Savchuk/Alamy

Without human-induced climate change, the Earth could have been on track to enter another ice age within 11,000 years. This long-term prediction of the planet's “natural” climate is based on a new analysis of how orbital shapes and the tilt of their axis combine to change the amount of solar energy reaching Earth.

For millions of years, these orbital oscillations (known as the Milankovich cycle) entered and left the planet during the Ice Age about every 41,000 years. However, over the past 800,000 years, these ice ages, also known as ice age, have only occurred every 100,000 years. The term Ice Age, as it is currently, can be used to refer to whenever there is ice on Earth's poles, but generally refers to a wide range of ice Age periods.

The ambiguity of the record as the ice sheets were willingly retreated meant that it was not possible to explain how trajectory changes were involved in driving this long cycle.

If previous research attempted to link orbital changes to a specific period, such as onset of an ice age, Stephen Barker Cardiff University in England and his colleagues took a new tack. They came back fading during the “glacial age” where they saw the overall pattern of the ice age, also known as ice age. This allowed us to link changes in trajectories with changes in ice, despite the ambiguity of ice records over the past million years.

They discovered that these 100,000-year cycles appear to follow simple rules. For the last 900,000 years, following the most circular phase of the orbit, the planets also tilted towards the Sun, thus causing all interglacial periods after the Earth's axis wobbled at the farthest from the Sun.

This suggests that all three of these aspects of Earth's orbit (known as precession, oblique and eccentricity) are combined to create a 100,000-year glacial cycle, Barker says. “Since 900,000 years ago, this simple rule has predicted all of these major glacial end events, which says it's really very easy to predict,” he says.

Under that rule, the next ice age where you currently live is expected to begin approximately 66,000 years from the year, as there is no impact on greenhouse gas emissions. But that could only be started if there was an ice age before that,” says Barker.

The diagonal and gradual stages of precession that preceded the Holocene suggest that the glaciers are likely to be on track between 4300 and 11 and 100 years from now. We may now live in what would have been the beginning of this next ice age. “Of course, it's just a natural scenario,” says Barker.

More than 1.5 trillion tons of carbon dioxide have been released into the atmosphere as the Industrial Revolution is expected to cause sufficient warming to disrupt this long-term glacial cycle.

“The amount we've already put into the atmosphere is so big that it takes hundreds to thousands of years to pull it out through natural processes,” Barker says. However, he says more research is needed to define the planet's future natural climate in a more detailed way.

It states that this is consistent with previous modeling suggesting that anthropogenic emissions can prevent the onset of the next ice age, from dozens to hundreds of thousands of years. Andrei Ganopolsky At the Potsdam Climate Impact Research Institute in Germany.

But he says even at pre-industrial levels of CO2 in the atmosphere, it was high enough to delay the ice sheet advancement by 50,000 years. This is due to the unusually small orbital changes expected in thousands of years and the unpredictable way that Earth responds to those changes.

topic:

  • Climate change/
  • global warming

Source: www.newscientist.com

Slow Down Your Biological Age with This One Supplement

When it comes to maintaining health in old age, amidst the plethora of complex supplements advertised by influencers and podcast hosts, the key might just be Omega-3. Recent research suggests that regular consumption of Omega-3 fatty acid capsules can have a significant impact on longevity, potentially slowing the aging process by up to 4 months. Lower aging.

Biological age is a more accurate indicator of your life expectancy than your chronological age. It reflects the rate of DNA changes, which can vary from person to person.

A study published in the journal Nature Aging compared the effects of Omega-3 intake, vitamin D supplementation, and regular exercise on over 700 adults above 70. Participants were divided into three groups, receiving either 1g of Omega-3, 30mg of vitamin D, or engaging in 30 minutes of exercise three times a week, or no treatment at all.

Throughout the study, blood samples were collected and participants’ aging rates were measured using epigenetic “clocks.” The results showed that those taking Omega-3 experienced a biological age reduction of four months. When combined with vitamin D and exercise, the effects were even more pronounced, reducing the risk of various age-related ailments.

Experts, like Dr. Mary Ni Lochlainn, a Geriatrics specialist, are encouraged by these findings. However, some caution that more standardized tests for biological aging are needed to fully understand the impact of such interventions.

Read more:

  • Five tablets that may reverse aging (including those that may already be taken)
  • Are you sick?
  • Five simple ways to instantly find your “biological age”

Source: www.sciencefocus.com

‘Ease of Pregnancy for Young Women in the Age of Smartphone Fertility Apps’

A controversial app aimed at empowering women to manage their sex lives by predicting fertile days is being criticized for making inaccurate claims that could lead to unintended pregnancies.

Many women in the UK, including 69% of 18-24 year olds, use smartphone apps to track their menstrual cycles and identify their most fertile and least fertile days. However, experts caution that the data used by these apps to make predictions is often unreliable and limited.

Despite these concerns, one app, called the Period & Fertility Tracker, falsely promotes itself as a reliable method of contraception. Another app, Cycles, claims to accurately predict pregnancy chances daily but offers a disclaimer on its website stating it is for informational purposes only.

While some apps offer features to manage fertility goals and check chances of pregnancy each day, their effectiveness is doubted by experts. The increasing use of “natural contraception” methods raises further concerns, as studies show a rise in unintended pregnancies among users of these apps.

The accuracy of these apps in predicting fertile windows is also questioned, as they rely on traditional methods that have a high risk of error. Despite some apps requiring daily data entry for improved accuracy, the overall effectiveness of these methods remains low.

Regulators are urged to address the potential dangers posed by unregulated apps that claim to be contraceptives. While only one app is authorized to be sold as a contraceptive in some countries, the overall lack of regulation raises concerns about the safety and accuracy of these apps.

In conclusion, the growing trend of relying on period tracking apps for contraception raises serious issues about women’s health and the need for more reliable contraceptive methods.

Source: www.theguardian.com

How does the brain change with age when processing music?

As individuals age, their brains may experience difficulties in learning and decision-making due to a decrease in brain cells and cognitive function. However, neuroscientists have found that the brain can rewire connections to compensate for age-related cognitive decline through a process known as compensatory scaffolding. This involves forming new connections in the brain, strengthening existing ones, and even generating new brain cells. Yet, the specifics of how these new connections operate and interact, as well as their limitations, remain unclear.

Research conducted by Leonardo Bonetti and colleagues indicates that older individuals may exhibit more compensatory scaffolding and less unilateral brain activity compared to younger individuals when processing auditory information like music. Previous studies have shown that certain brain areas involved in memory and task processing decline faster in aging individuals, prompting Bonetti’s team to investigate how age impacts the brain’s response to compensatory scaffolding during music processing.

To test their hypothesis, Bonetti and his team studied brain activity in 37 young adults (aged 18-25) and 39 older adults (aged 60 and above) as they listened to music. Using magnetoencephalography and magnetic resonance imaging devices, the researchers mapped brain activity in specific regions responsible for sound processing and decision-making, such as the temporal lobe, frontal lobe, and hippocampus.

During the study, participants were asked to memorize a musical sequence and distinguish between the original version and modified versions with altered notes. Older participants showed less brain activity in most regions compared to younger participants, except for the left auditory cortex. This increased activity in the left auditory cortex suggested that the aging brain can reorganize and maintain function in certain areas, despite decreased activity in memory-related regions.

Notably, younger participants displayed more brain activity in memory and working memory areas, enabling them to detect modified musical sequences more effectively than older participants. The study also revealed that individuals with strong working memory were better at recognizing modified sequences, regardless of age group.

Overall, the research highlights that parts of the brain linked to memory and cognitive function may decline with age, but healthy aging can trigger brain reorganization to mitigate functional decline. Bonetti’s findings challenge previous notions that aging does not impact brain pathways associated with memory, decision-making, and other executive functions.


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Source: sciworthy.com

The Illusion of God: Exploring the Pope’s Popularity as a Deepfake Image in the Age of Artificial Intelligence

For Pope, it was the wrong kind of Madonna.

The pop legend behind the ’80s anthem “Like a Prayer” has been at the center of controversy in recent weeks after posting a deepfake image of the Pope hugging her on social media. This further fanned the flames of an already heated debate over the creation of AI art, in which Pope Francis plays a symbolic and unwilling role.

Catholic Church leaders are accustomed to being subject to AI fabrications. One of the defining images of the AI boom was Francis wearing a Balenciaga down jacket. The stunningly realistic photo went viral last March and was seen by millions of people. But Francis didn’t understand the funny side. In January, he referenced the Balenciaga image in a speech on AI and warned about the impact of deepfakes.


An AI-generated image of Pope Francis wearing a down jacket. Illustration: Reddit

“Fake news…Today, ‘deepfakes’ – the creation and dissemination of images that appear completely plausible but false – can be used. I have been the subject of this as well.” he said.

Other deepfakes include Francis wearing a pride flag and holding an umbrella on the beach. Like the Balenciaga images, these were created by the Midjourney AI tool.

Rick Dick, the Italian digital artist who created the image of Madonna, told the Guardian that he did not intend to offend with the photo of Frances putting his arm around Madonna’s waist and hugging her. Another image on Rick Dick’s Instagram page seamlessly merges a photo of the Pope’s face with that of Luigi Mangione, the man accused of killing UnitedHealthcare CEO Brian Thompson. They are more likely to be offended.


AI image of Madonna and Pope Francis. Illustration: @madonna/Instagram

Rickdick said Mangione’s image was intended to satirize the American obsession with Mangione being “elevated into a god-like figure” online.

“My goal is to make people think and, if possible, smile,” said the artist, who goes by the stage name Rick Dick, but declined to give his full name.

He said that memes (viral images that are endlessly tweaked and reused online) are our “new visual culture, fascinated by their ability to convey deep ideas quickly.”

Experts say the Pope is a clear target for deepfakes because of the vast digital “footprint” of videos, images, and audio recordings associated with him. AI models are trained on the open internet, which is filled with content featuring prominent public figures, from politicians to celebrities to religious leaders.

Sam Stockwell, a researcher at Britain’s Alan Turing Institute, said: “The Pope is frequently featured in public life and there are vast amounts of photos, videos, and audio clips of him on the open web.” said.

“Because AI models are often trained indiscriminately on such data, these models are more sensitive to the facial features and facial features of individuals like the Pope than models with less large digital footprints. It makes it much easier to reproduce the similarities.”

Rick Dick said the AI model he used to create the photo of Francis that was posted to his Instagram account and then reposted by Madonna was created on a paid platform called Krea.ai by the pope and the pop star. It is said that the robot was trained specifically for images. However, realistic photos of Francis can also be easily created using freely accessible models such as Stable Diffusion, which allows users to place Francis on a bicycle or on a soccer field with a few simple prompts.

Stockwell added that there is also an obvious appeal to juxtaposing powerful figures with unusual or embarrassing situations, which is a fundamental element of satire.

“He is associated with strict rules and traditions, so some people want to deepfake him in unusual situations compared to his background,” he said.

Adding AI to the satirical mix will likely lead to more deepfakes from the Pope.

“I like to use celebrities, objects, fashion, and events to mix the absurd and the unconventional to provoke thought,” said Rick Dick. “It’s like working on a never-ending puzzle, always looking for new creative connections. The Pope is one of my favorite subjects to work on.”

Source: www.theguardian.com

Bronze Age Briton Experiences Brutal Attack and Cannibalism

New research has revealed that during the early Bronze Age in England, at least 37 people may have been “systematically dismembered” and eaten in the aftermath of “extremely violent” attacks.

The study, published in the journal ancient, revealed that more than 3,000 bones were excavated from a 50-foot hole at Charterhouse Warren in southwest England.

The bones, which were first discovered in the 1970s by cave explorers, showed an “abundance of cut marks,” prompting researchers to conduct further analysis.

Lead author Rick Schulting, a professor of scientific and prehistoric archeology at the University of Oxford, described the violence inflicted on the bodies as exceptional, with victims being killed with blows to the head, systematically dismembered, skinned, and crushed.

The study suggests that this extreme violence likely occurred in a single event between 2210 BC and 2010 BC, making it a unique example of violence in early Bronze Age Britain.

An example of cranial trauma in a Bronze Age skull recovered from Charterhouse Warren.
Antiquity Publications Ltd / Cambridge University Press

This act of violence was likely not isolated and may have sparked a cycle of revenge within and between communities in the Early Bronze Age, according to Mr. Schulting.

The motives behind such attacks are difficult to determine, but the study suggests that tensions may have escalated from accusations of theft and witchcraft, leading to an uncontrollable spiral of violence.

Victims may have been eaten to dehumanize and treat them like animals, involving a large number of aggressors based on the number of victims and the dismemberment process, the study noted.

The bones were found alongside animal fossils, indicating early evidence of slaughter, which the researchers believe was driven by hunger as the attackers had access to plenty of food.

Source: www.nbcnews.com

The age of Saturn’s rings may surpass our previous estimates

Saturn and its rings photographed by the Cassini spacecraft in 2016

NASA/JPL-California Institute of Technology/Space Science Institute

Modeling studies suggest that Saturn's rings are much older than previously thought and may have formed around the same time as Saturn. But not all astronomers are convinced, and the researchers who were part of the team that calculated that Saturn's rings are relatively young insist that the new findings do not change their findings. are.

For most of the 20th century, scientists believed that Saturn's rings formed with the planet about 4.5 billion years ago. But when NASA's Cassini spacecraft visited Saturn in 2004, it found its rings to be noticeably free of contamination from tiny space rocks known as cosmic dust. This innocent appearance indicated that they were much younger. Estimates for 2023 put their age between 100 million and 400 million years.

now, Ryuki Hyodo in Japan Space Science Institute He and his colleagues calculated that Saturn's rings should be much more resistant to contamination from space dust than previously thought, allowing them to maintain a pristine appearance for long periods of time. Hyodo and his team haven't calculated a new age for the ring, but they suggest it could be as old as Earth, as astronomers once believed.

The researchers then modeled how these particles moved through Saturn's magnetic field, and found that only a small portion settled on the rings, while the majority were drawn into Saturn's atmosphere. It turned out that the object was either destroyed or bounced back into space. “The accretion efficiency of Saturn's rings is only a few percent, which is much smaller than previously assumed,” says Professor Hyodo. This could extend previous ring age estimates by hundreds of millions to billions of years, he said.

Sasha Kemp A member of the team at the University of Colorado Boulder that calculated an earlier, much younger estimate of the age of Saturn's rings, he and his colleagues considered not only the ring's contamination efficiency, but also its contamination efficiency, taking into account the time it would take. He said he used a more complicated method. This is because matter reaches the ring and disappears. The values ​​calculated by Hyodo and his colleagues do not change the overall results for that age, Kempf said. “I'm sure this doesn't mean we really have to go back to square one.”

However, Hyodo argues that times should change dramatically as pollution efficiency declines. “They assumed an efficiency of 10%, but we reported 1%. The equation tells us that it's a billion years, or a billion years.”

Kemp also said that while the new simulation assumes that Saturn's rings are made of solid ice particles, the actual rings are made of soft particles that are much larger in size than what was modeled in the study. He said there was. “If you fire particles into these fairly complex and soft structures, the outcome of such collisions will be very different,” he says.

Hyodo argues that this assumption is standard for many similar studies. “No one knows what kind of effect the difference in ice will have,” says Hyodo. “It may or may not be more efficient.”

Lotfi Ben Jaffer A professor at France's Paris Institute of Astrophysics, who was not involved in either age-estimation study, said the study suggests the rings are not as young as recently claimed. “This is a positive step toward a lack of modeling efforts needed to adequately address the fundamental question of planetary ring system formation and evolution,” he says.

But Hyodo and his team need to improve their modeling to more accurately estimate the ring's contamination, he says, so they can more accurately determine its age.

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Source: www.newscientist.com

The Age of the Brain: How 13 Types of Proteins in the Blood Can Give Clues

Researchers trained artificial intelligence model to measure people's age from brain scans

Laboratory/Alamy

The abundance of 13 types of proteins in the blood appears to be a strong indicator of how quickly the brain is aging. This suggests that blood tests could one day help people track and even improve their brain health.

Most previous studies have looked at protein markers of brain aging in the blood. Less than 1000 peoplesay nicolas seyfried from Emory University in Atlanta, Georgia, was not involved in the new study.

To get a broader idea of ​​the effects of these proteins, Liu Weishi Researchers from Fudan University in China analyzed MRI brain scan data from around 11,000 adults (approximately 50 to 80 years old at the time of the images) who took part in the UK Biobank project.

Liu's team trained an artificial intelligence model using data from 70% of the participants to determine features of brain images, such as the size of different brain regions and how different parts are connected to each other. The age of the participants was predicted based on When the model was applied to the remaining 30% of participants, its predictions were accurate to within 2.7 years of their actual age.

The researchers then used the model to predict the age of another group of about 4,700 people, with an average age of 63, who also underwent brain imaging for UK Biobank. The researchers calculated the difference between these participants' actual ages and their AI-predicted ages, called the brain age gap. “The higher the age predicted by the AI ​​compared to the actual age, the faster the brain ages,” Liu says.

The group also provided blood samples around the same time as the brain imaging. From this, the research team identified eight proteins that appear to increase in abundance as brain age increases, and five proteins that appear to decrease in abundance.

In an analysis of data from previous studies, researchers confirmed that these proteins are produced by brain cells and that their levels can influence the risk of dementia and stroke.

This suggests that blood tests for these proteins may reveal how quickly the brain ages. “These markers may be canaries in the coal mine that say, 'Hey, look, let's start doing interventions that slow brain aging while there's still plenty of time,'” Seyfried said.

But for this to be helpful, we need to know that these proteins can change with lifestyle changes. “If I run this much, I'll lose this much weight, if I change my diet, [then] We can correct these levels and bring them back into normal range,” Seyfried says.

Because the study was conducted primarily among wealthy white people, Seyfried said more research is needed to see if the results hold true for other populations with more diverse ethnicities and income levels.

The research team now hopes to conduct studies in animals to determine exactly how the 13 proteins affect the brain. For example, researchers might test whether disrupting levels of these proteins affects cognition or even the development of neurodegenerative conditions, Liu says. “In the coming decades, this could open up ways to target proteins to slow aging and disease.”

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Source: www.newscientist.com

Exploring Age and Gangsterism in ‘Mafia: Definitive Edition’ | Game Review

I I'm at a stage in my life where my options are limited when it comes to the job I dreamed of as a child. I'm too old to play football for Scotland, and I have no intention of owning a brewery or becoming an astronaut. (In hindsight, it was a bit ambitious to aspire to a job that combined all three.) Also, in this economy, many people are willing to take a job without knowing if the new job will work out. It is dangerous to abandon it. Luckily, video games allow you to try it out before you take the plunge. Besides, you're never too old to be a gangster, right? That's why I started playing Mafia: Definitive Edition.

I played a little bit of the original version from 70 billion years ago. But it didn't last long. Because there were driving sections that were as unintuitive and poorly controlled as the buggy on Mars.

For me, the dream of becoming a gangster was less about murder and extortion, and more about the social aspect of just hanging out with guys and yelling abuse. This is more than fully expressed in this game. Guys tell me “always soft when it comes to broads” as soon as I start taking an interest in the bar owner's daughter. Hey, does that Jabroni really have my number!

The story of the main character Tommy is how I imagine his path into the mafia. I was born on the east coast of Scotland of Polish descent, so I couldn't trace my family back to Sicily and had no blood ties to any of my five families. Like Tommy, I started out as a taxi driver, and one night I picked up some injured people from a rival gang and did a job of such high quality that I was invited to do more work for them. I imagined it would be. This is the mob equivalent of a 5-star review on Uber.

It's not Goodfellas or The Godfather, but it's solid… Mafia: Definitive Edition. Photo: Hangar 13

With the updated version, you don't actually have to do much driving. You can skip between destinations with the press of a button, but this means you'll miss out on the chat throughout the journey that helps explain the story in more detail. And that's a good story. It's not Goodfellas or The Godfather, but I thought it was solid and the voice actors did a pretty good job.

The script is full of clichés, but they remind me of the mafia movies I grew up loving, so they put me at ease. Politicians are always “taking action.” Gangs always want to “legalize” eventually. It's not about saving lives, it's about saving “donkeys.” you don&#39t thing“Do what needs to be done.'' You are not brave, you have a “real set of balls”. That's not all Any It's a set of balls, but it's a set that frequently requires commentary and praise. My boss, Don Salieri, kept saying to his co-workers, “Look at this kid's set of balls.” Isn't it strange that the mafia doesn't have a human resources department? After one meeting, everyone leaves the room, leaving not one but two cigars burning in the ashtray. Therefore, I don&#39t think much about safety and health in this workplace either.

Some things are a little silly. My character is still called “The Kid” even though he's 30 years old. Maybe they're bootlegging an elixir of life with bourbon. To get the weapon, you have to go see a man named Vincenzo. I am often told that he has just what I need. Most often it will be a baseball bat. I could have bought it at Toys R Us.

However, I find this game very comfortable to play in a predictable and undemanding way. Most of the time it's like settling down with a cozy crime thriller or potato-based soup, but there are some very difficult levels. Completely unforgiving races, bike chases with no room for error, and a level where you have to shoot down a plane, not only did you have to dial down the difficulty to make it easier, but you turned down the controller sensitivity so much that the sights It moved like an ocean tanker. (Thanks to Reddit for the last tip. Also, thanks for the comments from other people who suffered at that level. It was like a video game PTSD group.)

But as I feel comfortable in this nice mafia job with prohibitions and big money, one character gets bored and tired of this life. “I get rusty because we sit there and crush balls for six months. Then I&#39m fighting to stay awake while Don tells me stories.” he says.

I think mafia, like any other job, gets boring after a while.

Source: www.theguardian.com

Archaeologist argues that Bronze Age town of Arnata exemplifies ‘slow urbanism’

During the Bronze Age, northwestern Arabia, the region between Mecca and Aqaba, was home to interconnected city walls centered around small fortified cities, such as the recently discovered town of al-Nata in the Khyber Oasis in the Medina province of Saudi Arabia. There were oases dotted around the area.

3D virtual reconstruction of the Bronze Age town of Arnatar. Image credit: Charloux others., doi: 10.1371/journal.pone.0309963 / AFALULA-RCU-CNRS.

The development of metropolitan settlements was a major step in the evolution of human civilization.

This urbanization process can be difficult to study in northwestern Arabia, in part due to the region's lack of well-preserved archaeological sites compared to better-understood regions such as the Levant and Mesopotamia. I understand.

However, excavations in recent decades have uncovered exceptional ruins that provide insight into the early stages of urbanization in northwest Arabia.

In a new study, CNRS archaeologist Guillaume Charroux and colleagues focused on the Bronze Age town of Al Nataa, which was inhabited from around 2400 to 1500 BC.

The town is approximately 1.5 hectares in area and includes a central area and nearby residential areas surrounded by a protective wall.

According to researchers, about 500 people lived in Arnata.

Although similar in size and composition to other sites of similar age in northwest Arabia, these sites are smaller and less sociopolitically complex than modern sites in the Levant and Mesopotamia.

Scientists suggest that Al Nata represents a state of “hypo-urbanization”, a transition period between nomadic pastoralism and complex urban settlement.

Archaeological evidence so far indicates that small fortified cities dotted northwestern Arabia during the Early to Middle Bronze Age, a period when other regions were showing later stages of urbanization.

Further excavations throughout Arabia will provide more detailed information about the timing of this transition and the changes in social structure and architecture that accompanied it.

“Archaeologists have discovered the first small Bronze Age town (c. 2400-1300 BC) in northwest Arabia connected to an extensive network of walls, raising questions about the early development of local urban planning,” the authors said.

Their paper was published in the online journal PLoS ONE on October 30, 2024.

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G. Charroux others. 2024. Bronze Age towns in the walled oasis of Khyber: A discussion of early urbanization in northwestern Arabia. PLoS ONE 19 (10): e0309963;doi: 10.1371/journal.pone.0309963

Source: www.sci.news

Uncover Your True Biological Age with This Straightforward Balance Test

When it comes to balancing on one foot, it may seem like a simple task, but it could actually indicate more than you think. Recent research suggests that struggles with balance could be a sign of accelerated aging in the body.

Scientists at the Mayo Clinic in Minnesota have discovered that the ability to balance on one leg can reveal the rate of aging in the neuromuscular sensory system, particularly in older individuals.

This sensory system, comprised of nerves connecting muscles to the brain and spinal cord, plays a crucial role in facilitating movement. Its decline with age can lead to slower reflexes and movements.


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“Balancing on one leg involves various physiological components like leg strength, postural stability muscles, neuromuscular coordination, and sensory information, all of which tend to decrease with age,” explained Professor David Proctor, an aging and exercise expert at Pennsylvania State University in the US. This information was reported by BBC Science Focus.

Preventing or slowing down the decline in strength and balance as we age can significantly impact one’s ability to stay functionally independent in the long term.

The study involved 40 participants aged between 50 and 80, who were assessed on their ability to balance on one leg. Despite similar height, weight, and activity levels, age was the only differing factor among the participants.

Each participant performed four 30-second balances with eyes closed and eyes open for both legs. The researchers recorded the duration of balance maintained within each 30-second interval to evaluate the impact of age on balance.

The results indicated a direct correlation between age and trembling, with a 6.3% increase in tremors with eyes open and a 10.5% increase with eyes closed for every decade of age. Additionally, the time spent balancing decreased by 2.2 seconds per decade on the non-dominant leg and 1.7 seconds on the dominant leg.

This suggests that balance duration is a valid marker of aging and a potential indicator of fall risk in older adults.

Although balancing for 30 seconds may not require significant muscle strength, it heavily relies on good neuromuscular control, which diminishes with age, leading to increased sway and reduced balancing time.

Fortunately, research highlights the benefits of balance and aerobic exercises like swimming, running, and cycling in preventing age-related decline in balance and muscle control.

About our experts

Dr. David Proctor, a professor at Pennsylvania State University, USA, specializes in kinesiology, physiology, and medicine. His research has been featured in various scientific journals.

read more:

Source: www.sciencefocus.com

Norway Implements New Minimum Age Requirement of 15 for Social Media to Safeguard Children

Norway has set a strict minimum age limit of 15 for social media in its efforts to combat tech companies that are deemed harmful to young children’s mental development.

Prime Minister Jonas Gare Stoer of Norway acknowledged the challenges ahead in this battle but emphasized the need for politicians to intervene to shield children from the influence of algorithms.

The utilization of social media platforms by the industry has been criticized for potentially causing users to become fixated and unstable.

Despite Scandinavian countries already having a minimum age limit of 13, a significant percentage of younger children still access social media, as highlighted by a survey by the Norwegian Media Authority.

The government has pledged to implement additional safeguards to prevent children from bypassing age restrictions, including revisions to personal data laws mandating a minimum age of 15 for consenting to personal data processing on social media platforms and the development of age verification barriers.

Emphasizing the need for protection of children from harmful content on social media, the prime minister spoke of the powerful impact that tech companies can have on young minds. He acknowledged the formidable challenge ahead but stressed the essential role of politics in addressing this issue.

While recognizing the potential benefits of social media in fostering community for isolated children, he cautioned against excessive reliance on algorithms for self-expression, citing the risk of becoming overly focused and detached.

Minister for Children and Families Gjersti Toppe engaged with parents in Stavanger to advocate for stricter online regulations for children as a means of supporting parental decisions in safeguarding their children’s online activities.

The government is exploring methods to enforce restrictions without infringing on human rights, such as potentially requiring bank account information.

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Australia has also proposed a social media ban for teenagers and children, with the age limit likely to fall between 14 to 16 years old.

France is currently testing a ban on mobile phone usage in schools for students up to 15 years old, with plans for potential nationwide implementation from January pending the trial’s success.

Source: www.theguardian.com

Rare Bronze Age Wooden Tools Unearthed in British Trenches

Archaeologist removing excess mud from a Bronze Age plow

wessex archeology

A Bronze Age wooden spade has been unearthed by British archaeologists. It is extremely rare that wooden artifacts from such an ancient period have been preserved.

This spade offers a glimpse into life at a time when people grew crops and increasingly lived in settled communities.

“It’s very specific,” he says ed treasure At Wessex Archaeology, Salisbury, UK. “It’s a very direct connection to the past.”

The spade was discovered in a bog near Poole Harbor on England’s south coast, where Wessex Archeology has been excavating for several years. of The Moors of the Arne Coastal Change Project is working to restore the region’s coastal wetlands, and archaeologists are carrying out excavations to ensure that no useful artifacts are accidentally lost.

The researchers were digging a ring gully, a circular trench that is thought to have originally surrounded the shelter. In one of the ring gullies they found the handle of a spade. “It was an almost unbelievable moment,” says Treasure, who was not personally present. “I could tell right away that it was a carved piece of wood.” The spade was carved from a single piece of oak.

Moist conditions did not expose the shovel to oxygen, slowing down rot.

Using debris found with the spade, the team radiocarbon-dates the spade to 3,400 to 3,500 years ago. “A small part of the spade broke off during the burial, but we used it as a date,” Treasure said. Nearby pottery also showed a similar age. This dates the origins of the spade back to the Middle Bronze Age.

“We’re in the midst of some pretty big changes in prehistoric Britain,” Treasure says. People stopped living as nomads and began spending more time in settled communities, growing a variety of grains and other foods.

However, there are no signs of permanent settlement at this location throughout the year. Of course, it was and still is a wetland. “We strongly believe this is a seasonal use of this landscape,” Treasure says. People may have brought in animals for summer grazing, cut peat for fuel, or collected reeds for thatching.

Future research will try to understand how plows were made and what they were used for. “It may have been used to cut peat on site,” Treasure said. “It may also have been used to dig the ring ditch where it was discovered.”

It is rare that a spade from this era has been preserved. One of the only other examples is the Brynlow shovel. Discovered in Cheshire in 1875rediscovered in the 1950s It was discovered by fantasy author Alan Garner in a school assembly hall and was eventually radiocarbon dated to almost 4,000 years ago.

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Source: www.newscientist.com

Finds from the Bronze Age indicate that market economics may have originated earlier than previously believed

Bronze Age metal hoard from Weisig, Germany

J. Lipták/Landesamt für Archäologie Sachsen

Bronze Age Europeans earned and spent money in much the same way we do today, indicating that the origins of the “market economy” are much older than expected.

That’s the controversial conclusion of a new study that challenges the view that elites were the dominant force in Bronze Age economies and suggests that human economic behaviour may not have changed much over the past 3,500 years or more.

“We tend to romanticize European prehistory, but the Bronze Age was not just a fantasy world where townsfolk and peasants served their needs as a backdrop for great lords,” he said. Nicola Ialongo “It was a very familiar world, with family, friends, social networks, markets, jobs, and ultimately having to figure out how to make ends meet,” says Professor at Aarhus University in Denmark.

Bronze Age Europeans, from 3300 to 800 BCE, were not meticulous bookkeepers like people in other ancient societies, such as those in Mesopotamia. But Ialongo and Giancarlo Lago Researchers at the University of Bologna in Italy suggest that the treasure trove of metal they left behind may hold important insights into their daily lives and the roots of modern economic behavior.

Lago and Ialongo analyzed more than 20,000 metal objects from Bronze Age burials in Italy, Switzerland, Austria, Slovenia and Germany. These metal objects came in many different forms, but around 1500 B.C. they began to be standardized by weight, which is how they were classified. Many experts These are distinguished as a type of pre-monetary currency.

“The discovery of widespread systems of measurement and weight allows us to model things that have been known for centuries in ways that have never been modeled before,” Ialongo says. “This not only gives us new answers to old questions, but it also gives us new questions that no one has asked before.”

The team found that the weight values ​​in their vast sample followed the same statistical distribution as the daily expenses of a modern Western household: small everyday expenses, represented by lighter pieces, dominated the consumption pattern, while larger expenses, represented by heavier pieces, were relatively rare. This pattern is similar to that found in the average modern wallet, with many small bills and very few large bills.

Lago and Ialongo interpret their find as evidence that the Bronze Age economic system was regulated by market forces of supply and demand, with everyone participating in proportion to how much they earned. This hypothesis contrasts with the influential view put forward by anthropologist Karl Polanyi in the 1940s, who characterized the modern economy, based on monetary gain, as a new phenomenon distinct from ancient economies centered on barter, gift exchange, and social status.

Richard Brunton A researcher from Purdue University in Indiana called the study credible: “I think this argument will stimulate debate among archaeologists and economic anthropologists who have been based for decades on erroneous assumptions about the antiquity of market economies,” he said.

“I think this paper adds useful fuel to that criticism,” Brunton says, “and to me it sheds entirely new light on the function of bronze deposits and the potential use of bronze coins as a unit of exchange.”

but, Erica Schonberger Researchers at Johns Hopkins University in Maryland are skeptical of the team’s conclusions. “It’s dangerous to assume that ordinary people in premodern times used money in normal economic activities,” says Schonberger. “For example, medieval English peasants only got money for selling their produce when lords began to demand money in lieu of rents or taxes in kind. They gave most or all of that money directly to the lords. They sold to get money, but they didn’t use it to buy things they needed. We’re still a long way from modern economic behavior.” [in the Middle Ages].”

Lago and Ialongo hope that their work will inspire other experts to carry out similar studies on artefacts from different regions and cultures. They suggest that market economies are a natural development across time and cultures, and that such systems are not something new or unique that has emerged in Western societies over the past few centuries.

“Technically, we haven’t proven that the Bronze Age economy was a market economy,” Ialongo says, “we simply have no evidence that it wasn’t. And we’re just pointing out a contradiction: why is everyone so convinced that there wasn’t a market economy when everything we see can be explained by a market economy model? In other words, if the simplest explanation works well enough, why should we have to imagine a more complex one?”

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Source: www.newscientist.com

New study claims that this diet can reverse biological age in just eight weeks

Increasing plant-based food consumption is known to benefit both health and the environment, yet only a few individuals fully commit to a vegan diet.

However, a recent study suggests that following a vegan diet for just eight weeks could potentially reverse one’s biological age. Researchers discovered that participants who adhered to a vegan diet showed a reduction in their estimated biological age, as indicated by DNA methylation, an epigenetic marker.

Dr. Lucia Aronica, along with other co-authors from BBC Science Focus, explains, “DNA methylation and other epigenetic modifications regulate gene activity and expression.” These modifications change in specific ways as we age, allowing scientists to track and understand the aging process.

The study, as detailed in BMC Medicine, involved 21 adult identical twin pairs, where one twin followed a vegan diet while the other maintained an omnivorous diet for eight weeks. Blood samples were taken before and after the study to measure DNA methylation levels and assess the effects of each diet.

Results demonstrated that only the vegan group showed a slowing of the epigenetic aging clock, with some participants appearing almost one year younger by certain measures. A vegan diet was associated with reduced estimated ages of various organ systems, such as the heart, hormones, liver, and inflammatory and metabolic systems.

The average reduction in biological age for the vegan group was a remarkable 0.63 years. However, researchers caution that these findings should be interpreted carefully due to other factors like weight loss, as participants in the vegan group lost an average of 2 kilograms more than those in the omnivorous group.

Despite the promising outcomes, further research is necessary to understand the long-term effects of a vegan diet on aging and to differentiate between the effects of dietary composition and weight loss.

Experts like Dr. Hou Lifang suggest that additional studies are needed to validate these results, emphasizing the need for caution when drawing broad conclusions. While the study provides valuable insights, more research is required to fully comprehend the impact of a vegan diet on aging.

About our experts

Lucia Aronica focuses on epigenetics and gene-environment interactions in health outcomes. She is currently leading epigenetic analysis in the largest low-carb vs. low-fat diet study for weight loss. Aronica teaches nutritional genomics at Stanford University.

Varun Dwaraka is a bioinformatics researcher specializing in aging, epigenetics, and genetics. He has co-authored various publications on DNA methylation, tissue regeneration, and the epigenetic clock.

Hou Li-Fan, MD, MS, PhD, is a Professor of Preventive Medicine, integrating epidemiology with molecular technologies in disease studies focused on molecular markers and disease prevention.

Source: www.sciencefocus.com

The Impact of Alcohol on Biological Age: A Closer Look

It is widely known that excessive alcohol consumption is detrimental to health, a fact that has been established by scientific research over many years.

Despite this, there is still much to learn about the effects of alcohol on the body and whether consuming small amounts of certain types of alcohol may have potential benefits.

New research is shedding light on how alcohol impacts the body and accelerates the aging process, particularly at a cellular level that determines biological age.

Unlike chronological age, which simply counts the number of years someone has lived, biological age assesses cellular function and disease risk. Two key indicators of biological age, telomere length, and epigenetic age, provide evidence of the harmful effects of alcohol consumption on the body.


Drinking alcohol increases the risk of DNA damage

Telomeres are essential components of our genetic structure, protecting chromosomes from damage during cell replication. Over time, telomeres naturally shorten as cells divide. Shortened telomeres are associated with age-related diseases such as Alzheimer’s, cancer, and heart disease.

Research conducted by Anya Topiwala and her team at Oxford University in 2022 found that excessive alcohol consumption leads to a reduction in telomere length, accelerating the biological aging process.

Observational studies have shown that consuming 29 or more units of alcohol per week can result in a 1-2 year change in telomere length compared to drinking less than six units per week. Individuals with alcohol use disorders were found to have even shorter telomeres.

The exact mechanism by which alcohol shortens telomeres is not fully understood, but it is believed to be related to oxidative stress caused by alcohol consumption.

Certain types of alcohol are bad for you

Epigenetic age, which assesses DNA methylation linked to aging using multiple biomarkers, indicates the impact of lifestyle choices on biological age. Studies have shown that cumulative alcohol exposure increases biological age, with liquor drinkers being at a higher risk of premature aging compared to beer or wine drinkers.

Further research is being conducted to better understand the connection between alcohol consumption and biological aging, as the specific reasons behind these effects are not fully clear.

Can biological age be reversed?

While biological aging is theoretically reversible, the practical methods to achieve this reversal are not yet established. Scientists believe that by addressing environmental factors and lifestyle choices that impact DNA function, it may be possible to slow down the aging process.

Quitting or reducing alcohol consumption has been shown to slow down biological aging. Both studies emphasize that moderate drinking does not have any protective effects and that increased alcohol consumption accelerates the aging process.

About our experts

Anya Topiwala: A psychiatrist at Oxford University, Topiwala’s research focuses on the impact of alcohol consumption on brain health using large datasets and advanced imaging techniques.

Hou Li-Fan: A Professor of Preventive Medicine at Northwestern University, Dr. Hou’s research integrates epidemiological methods with molecular technologies to identify molecular markers and understand their role in disease prevention.


Source: www.sciencefocus.com

Ancient Norwegian archaeologist uncovers Stone Age leader’s visage

The skeletal remains of a 4,000-year-old Scandinavian man were discovered in 1916. Hitla island, Norway.

The male Hitra was approximately 169 cm tall, had blond hair and blue eyes. Image courtesy of Thomas Foldberg/Åge Hojem/NTNU University Museum.

“In 1916, the road up the hill to the Fausland farm on the island of Hitra was being renovated using gravel from the coast along the deepest part of Balmsfjorden,” said Dr. Birgitte Skarr of the NTNU University Museum. a colleague said.

“Suddenly, the workers noticed human bones among the sand and stones.”

“The bones belonged to an approximately 25-year-old man who died at the end of the Stone Age, 4,000 years ago.”

“He is believed to have drowned. At the time of his death, the sea level would have been 12.5 meters higher than it is now, and the site of his discovery would have been at a depth of 4 meters.”

Archaeologists also found and studied a Hitraean dagger and arm guard.

“The arm guard is a rectangular bone with two holes that would have been attached to the wrist of the bow hand,” they said.

“The guard protects your wrist from the impact of the bowstring when you shoot an arrow.”

“These pieces of equipment may indicate that he was a warrior.”

“It is impossible to determine whether the drowning was the result of a fight or an accident,” Dr. Skarr said.

“What we do know is that the Hitraeans lived in a very turbulent time.”

“Up until that point, most people lived as hunter-gatherers, and agriculture only became fully established in Norway at the end of the Stone Age, during the time of the Hitra people.”

“Although elements of agriculture had been introduced earlier in southern and eastern Norway, agriculture was first established during this period in central Norway, along the coast of western Norway, and in northern Norway.”

“We believe that agriculture was introduced by settlers who came to Norway to obtain more land, and they were willing to use weapons to do so.”

“So we have to expect violent clashes between the people who were already living here and the newcomers.”

“New people brought new knowledge to the country, not just about animal husbandry and agriculture, but also about other ways of organizing society.”

“They lived in a class society, had different worldviews, different religions, and large networks that spanned Europe.”

“This knowledge led to major political, economic, and social changes.”

“There is still much we don’t know about this dramatic period in Scandinavian history, and research continues.”

“His DNA is currently being analyzed at the Lundbeck Foundation Geogenetics Center at the University of Copenhagen.”

Source: www.sci.news