Teenagers are facing new restrictions on beauty filters on TikTok that are aimed at addressing concerns about increasing anxiety and decreasing self-esteem.
In the near future, users under 18 will not be able to use filters that artificially alter features like enlarging eyes, plumping lips, or changing skin color.
Filters such as “Bold Glamor” that significantly alter a user’s appearance will be affected, while simple comic filters like bunny ears or dog noses will remain available. The changes were announced by TikTok during a safety forum at its European headquarters in Dublin.
Despite these restrictions, the effectiveness depends on users accurately providing their age on the platform.
Beauty filters on TikTok, whether provided by the platform or created by users, are a source of concern as they pressure teenagers, especially girls, to conform to unrealistic beauty standards and can lead to negative emotional impacts. Some young users have reported feeling insecure about their real appearance after using filters.
TikTok will also enhance its systems to prevent users under 13 from accessing the platform, potentially resulting in the removal of thousands of underage British users. An automated age detection system using machine learning will be piloted by the end of the year.
These actions come in response to stricter regulations on minors’ social media use under the Online Safety Act in the UK. TikTok already deletes millions of underage accounts globally each quarter.
Chloe Setter, head of public policy for child safety at TikTok, stated that they aim for faster detection and removal of underage users, understanding that this might be inconvenient for some young people.
Ofcom’s report from last December highlighted TikTok’s removal of underage users and raised concerns about the effectiveness of age verification enforcement. TikTok plans to implement a strict age limit of 13+ for social media users next summer.
Social media platforms will introduce new rules regarding beauty filters and age verification, anticipating stricter regulations on online safety in the future. These adjustments are part of broader efforts to enhance online safety.
Other platforms like Roblox and Instagram are also implementing measures to enhance child safety, reflecting a growing concern about the impact of social media on young users.
Andy Burrows, CEO of the Molly Rose Foundation, emphasized the importance of transparent age verification measures and the need to address harmful content promoted on social media platforms.
The NSPCC welcomed measures to protect underage users but stressed the need for comprehensive solutions to ensure age-appropriate experiences for all users.
Some kitchen appliances have become popular in our kitchens due to their cost-effectiveness, durability, and easy cleaning. However, recent studies indicate that certain food staples like black plastic utensils, plastic cutting boards, and nonstick pots may release harmful substances into our food. This is not the kind of seasoning we want in our healthy, nutritious meals.
So, what are the risks associated with these kitchen tools, and what are the safer alternatives available?
Issues with Plastic Utensils
Many of us may have a set of black plastic spatulas, spoons, and ladles tucked away in our kitchen drawers. New research reveals that these items can potentially leach toxic flame retardants like decabromodiphenyl ether (decaBDE) into our food.
These chemicals were originally used in electronics to reduce fire risks but are now present in black plastic kitchen utensils made from recycled electronic waste.
Another study found that 85 percent of black plastic household items examined, including fast food trays, children’s toys, and kitchen utensils, contained toxic flame retardants, with the highest levels found in kitchen utensils.
DecaBDE is particularly harmful, linked to cancer, hormonal disorders, thyroid issues, developmental problems in children, neurobehavioral effects, and toxicity in the reproductive and immune systems. Due to these concerns, it was banned in the UK in 2018 and in the US in 2021.
Researchers estimate that people may be exposed to an average of 34.7 ppm of deca-BDE daily through recycled black plastic kitchen utensils, posing a significant health risk as the chemicals can accumulate in the body over time.
Instead of using black plastic utensils, consider switching to safer alternatives like stainless steel or food-grade silicone options.
Cutting Board and Microplastics
Plastic cutting boards, although seemingly harmless, can release microplastics into our food. These small particles, known as microplastics, can be ingested unintentionally and pose health risks.
Recent research suggests that cutting boards made of polypropylene and polyethylene can release up to 1,114 microplastic particles with just one cut, leading to potential health issues related to microplastic ingestion.
Replacing plastic cutting boards with bamboo or wood alternatives can help reduce these health risks, as these materials are naturally resistant to bacteria and environmentally friendly.
The Truth about Nonstick Cookware
Nonstick pans are favored by many home cooks for their convenience, but the chemicals used in these coatings, such as PFAS, raise health concerns. While modern nonstick pans are considered safe, there are uncertainties about their long-term impacts, especially when exposed to high temperatures or damage.
Be cautious with nonstick pans to prevent overheating, which can release toxic fumes and particles. Scratches or damage to the coating can also release harmful substances into food.
Consider using alternative cookware options like stainless steel or cast iron to avoid potential health risks associated with nonstick pans.
Whether you're roasting a chicken in the oven, browning onions in a skillet, or choosing a spread for your toast, oil is at the heart of our culinary endeavors.
The choices are dizzying. Around 30 different oils are currently used in cooking, from sunflower to flaxseed, avocado to coconut. Deciding which one to use can have a big impact on your health, including your cholesterol, blood pressure, and risk of cardiovascular disease.
If the headlines are to be believed, palm oil is obsolete, sunflower oil is in limbo, and there seems to be no end to the benefits extra virgin olive oil can bring to our plates. But are these claims backed by solid science, and how do the health impacts of these products compare to their environmental costs?
Saturated or unsaturated?
First, let's talk about chemistry. Edible oil contains fat, which is made up of long chains of carbon atoms. Saturated fats found in red meat and dairy products are so named because each carbon atom is connected to the next carbon atom by a single bond. The remaining electrons of each carbon atom are available to form bonds with hydrogen atoms, and the molecule becomes completely “saturated” with this element. This structure makes these fats very hard and stable, which is why butter and lard are solid at room temperature.
Unsaturated fats, which are commonly found in plants and fatty fish, have at least one double bond between adjacent carbon atoms, which reduces the number of bonds.
Humans have been fermenting foods and drinks for at least 13,000 years and touting their health benefits for almost as long. However, even though we have a long history with these foods, we are only just beginning to determine whether these foods are actually beneficial to our health.
But unlike our ancestors, we now know how fermentation works. Microorganisms such as certain yeasts and bacteria break down the sugars in grains, fruits, vegetables, and dairy products in ways that prevent them from spoiling and create their unique flavors. But what does this mean for our health?
This article is part of a series on nutrition that delves into today’s hottest trends. Click here for details.
Many studies have shown that fermented foods, especially dairy versions, Reduced risk of heart disease, type 2 diabetes and obesity. for example, 2023 survey A study of more than 46,000 adults living in the United States found that eating fermented foods was associated with lower blood pressure, body mass index, and waist circumference.
However, much of the research lumps all types of fermented foods together, and given the health effects of these products, it is likely that people who consume fermented foods are also more likely to take care of their health in other ways. I understand. Both of these factors make it difficult to determine what is actually driving the observed benefits.
benefits of yogurt
However, the most likely case is yogurt. Many large-scale studies have linked its consumption to: Improving immunityimprove bone density and longevity, and reduce the risk of: cardiovascular disease and high blood pressure. However, determining cause and effect from these observations…
Recent archaeological findings indicate that smoking not only stains teeth but also has a literal impact on bones. Additionally, new research suggests that the prevalence of smoking among women in Georgian and Victorian England may have been underestimated compared to men.
In a study conducted by Dr. Sarah Inskip, it was discovered that many women in historical records showed traces of tobacco use, contradicting common beliefs about smoking habits. This finding highlights the importance of considering smoking as a significant health risk for both men and women.
The survey results published in a scientific journal suggest that advancements in analyzing bones for historical information can also aid in modern criminal investigations. By identifying smoking patterns and other lifestyle aspects from bone samples, researchers can create biological profiles to assist in identifying individuals in forensic cases.
Researchers have identified specific molecular markers in bones that indicate smoking habits. By analyzing skeletal remains from different time periods, they found evidence of tobacco use in a significant portion of individuals, including those dating back to the 12th century.
These findings provide valuable insights into the historical prevalence of smoking and its impact on individuals’ health. The research team’s work opens up new possibilities for understanding past health issues and potentially improving modern health outcomes.
About our experts
Dr. Sarah Inskip, a researcher at the University of Leicester and a UKRI Future Leaders Fellow, has published her research in prestigious journals such as nature communications, archaeology and anthropology, and American Journal of Physical Anthropology.
According to one researcher, daily consumption of strawberries (1-4 cups per day) improves lipid metabolism and inflammatory outcomes in people at high cardiovascular risk. new review paper Published in a magazine Critical reviews in food science and nutrition.
Strawberries are a natural and delicious way to support heart health and manage cholesterol. Image credit: D. Сroisy.
“Strawberries contain a number of potentially health-promoting phytonutrients, including phenols, polyphenols, fiber, micronutrients, and vitamins,” said Roberta Holt, a researcher at the University of California, Davis, and colleagues.
“The purpose of our review is to provide a comprehensive overview of recent human studies on the effects of strawberry and strawberry phytonutrient intake on human health.”
For the review, the authors conducted a literature search through the PubMed and Cochrane databases.
They combined results from 60 papers (47 clinical trials and 13 observational studies) published from 2000 to 2023.
They found that strawberries are rich in beneficial phytonutrients such as polyphenols and fiber, which help lower LDL cholesterol and triglyceride levels while reducing inflammation.
The result is improved overall heart health and better management of cardiovascular risk factors.
Daily consumption of strawberries, whether in fresh, frozen, or freeze-dried form, can have a significant impact on cardiometabolic health, especially in those at high risk for heart disease.
Strawberries can help lower the risk of developing cardiovascular disease by improving lipid metabolism and reducing systemic inflammation.
“Our research shows that regular consumption of strawberries not only lowers cholesterol, but also helps reduce inflammation, a major contributing factor to heart disease,” Dr. Holt said.
“This means that simply adding a cup of strawberries to your daily routine can significantly reduce your risk of cardiovascular events.”
Beyond heart health, the team's review revealed exciting benefits for brain health.
The findings suggest that strawberries are rich in flavonoids, which may help slow cognitive decline and prevent dementia.
The researchers said, “Strawberries may support cognitive function and fight oxidative stress, which is an important factor in keeping the brain sharp as we age.”
_____
Phrae Charonwoodhipon others. strawberry (Fragaria × ananassa) Intake on human health and disease outcomes: a comprehensive literature review. Critical reviews in food science and nutritionpublished online on September 11, 2024. doi: 10.1080/10408398.2024.2398634
In a study led by Sapienza University in Rome, caffeine intake was positively correlated with the proportion of circulating endothelial progenitor cells in lupus patients.
Orefice others. studied the role of caffeine intake on endothelial function in lupus patients by evaluating the effects of caffeine intake on circulating endothelial progenitor cells. Image credit: Sci.News.
Vascular disease, damage to blood vessels, and the resulting heart attacks and strokes are among the leading causes of death in the general population.
These risks are even higher in patients with inflammatory rheumatic diseases such as lupus and rheumatoid arthritis.
This is due both to the disease itself and to some of its treatments, especially cortisone derivatives.
Until now, doctors’ recommendations for reducing these vascular risks have primarily been about avoiding risk factors.
This includes traditional recommendations such as smoking cessation, reducing cholesterol, and managing high blood pressure, as well as stopping inflammation and reducing the dose of cortisone medications.
But researchers at Rome’s Sapienza University think that doing something that’s actually fun may help patients improve their vascular health.
Research suggests that the caffeine found in coffee, tea, and cocoa helps regenerate the lining of blood vessels and actively supports endothelial progenitor cells, a group of cells involved in blood vessel growth.
Diets rich in vitamin D (found in fatty fish and eggs) and vitamin A (found in many fruits), polyunsaturated fatty acids and low in sodium appear to play a role in reducing inflammatory burden well known.
“We were also wondering about caffeine,” said Dr. Fulvia Ceccarelli and colleagues.
“In addition to its well-known stimulant effects on the body, caffeine also exerts anti-inflammatory effects because it binds to receptors expressed on the surface of immune cells.”
“The effects of caffeine intake on cardiovascular health have been widely investigated, but results are contradictory.”
The study authors surveyed 31 lupus patients without traditional cardiovascular risk factors using a 7-day dietary questionnaire.
After a week, the researchers drew blood from patent patients to measure blood vessel health.
They found that patients who consumed caffeine had better blood vessel health, as measured through the endothelial cells that form the critical lining of blood vessels.
“This study is an attempt to provide patients with information about the possible role of diet in controlling the disease,” said Dr. Ceccarelli.
“The results will need to be confirmed through longitudinal studies aimed at assessing the actual impact of coffee consumption on the course of the disease.”
Throughout history, there have been many individuals who meticulously monitored their weight, but one of the most intriguing figures is Santorio Santorio. In the 1500s, he devoted his life to tracking his body, weighing everything he consumed and everything he excreted.
For a particular scientific investigation, he created what he called a sanctorian weighing chair – a chair placed next to the dining table on a steel scale that closely monitored one’s weight.
His theory was based on the idea that individuals could maintain their weight by consuming the same amount that their bodies expelled (urine, feces, sweat, or what he referred to as “insensible sweat”). If it detected overeating, the chair would lower, making it impossible to reach the food. This would prevent further consumption until the end of the meal.
Despite being mocked at the time, Santorio’s concept had merit. The notion of a personalized, experimental, and quantitative approach to health is undeniably appealing.
Nearly two centuries later, Benjamin Franklin, inspired by Santorio, meticulously recorded his dietary intake and compiled a list of all 13 of his virtues. He marked them whenever he committed an immoral act, monitoring and quantifying his life in great detail.
In the modern era, individuals have pushed boundaries with technology to track various aspects of their lives. For instance, a Reddit user created a beautiful visualization depicting a baby’s sleep and wake times during the initial months of life.
Samsung Galaxy Z Flip6 Take your health tracking to the next level with Galaxy AI If you want to stay healthy, pairing Samsung’s Galaxy Z Flip6 with a Samsung Galaxy wearable is easy. and free samsung health The app allows users to track sleep patterns, heart rate, blood pressure, and calories. This information can be used to manage your health condition. energy score – Daily measurements of your physical and mental energy and readiness with Galaxy AI. Alternatively, you can engage in a calming meditation program on mindfulness and relaxation.
The advancement of wearables has made monitoring our health easier than ever. With technology, we can now effortlessly track various health metrics. AI-powered wearables connected to smartphone apps can monitor sleep patterns, blood oxygen levels, heart rate, and blood pressure.
Having access to objective numbers and data can be reassuring. It can serve as a motivator for achieving our health goals and connecting with communities that prioritize health tracking and accountability. However, it’s essential not to prioritize tracking numbers over happiness and well-being.
When it comes to fitness, remember that numbers are merely proxies for what truly matters. Each individual is unique, and responses to external stimuli vary. While trackers can provide insights into what is “normal” for a person, this data should be used to inform rather than dictate health status. Human bodies are complex and should not be reduced to mere data points.
Reader Simon Leech responded cheerfully to Feedback magazine’s call for papers that “the title tells you all you need to know” by saying, “Well, that’s what you wanted!”
“The title says it all you need to know,” says Leach, “but the report also answers every question you could possibly imagine. The final sentence sums it up: ‘The present patient may have thought his penis would not hit the fan, but the freshness of the experience drove him to disastrous results.'” Leach adds: “As junior doctors, we BMJ I think you should try harder, we are all reading this!”
Feedback argues that, whether professional or personal, we should love our vacuum cleaners wisely, but not too much. If you know of another research paper with a title as satisfying as this, please send it to Telltale titles, c/o Feedback.
How to Remove a Cyst
Shiheng Zhao and Pierre Haas grab the reader’s attention with the title of their study. “The mechanism of puncturing the cyst”Once that’s done, they change to a less civilised tone.
Chao and Haas, from two of the three Max Planck Institutes in Dresden, Germany, demonstrate a way of running a discussion that minimizes the unpleasant parts and maximizes the technical parts.
“Similar to poking fruit samples in the supermarket to assess their edibility, indenting biological samples reveals mechanical properties that are intrinsically related to their biological function,” they write.
After that, “Pushing force and debt And the displacement e “Deformation characteristics of the indenter” and “Calculation of the elastic deformation gradient”
If you have an interesting skin condition but your friends hate you for telling them about it, try using Zhao and Haas’s elegant phraseology: A cyst, they point out, is simply “a spherical monolayer of polarized cells surrounding a fluid-filled lumen.”
Meat burger
Hundreds of Hamburgers in the city of Hamburg, Germany, answered a survey about three different types of sausages. They were selected Hamburgers, all of whom belonged to a certain age group.
The senders of the survey, Stephan GH Meyerding and Magdalena Cooper from the University of Applied Sciences Hamburg, limited the questions to types of sausage: “meat, plant-based or in vitro salami.”
Of the three types of salami, meat-based is the most traditional, but plant-based versions have also grown in popularity over the past few decades, with test-tube salami made using stem cells being the newest, and still making its way from the lab to the dinner table.
Judging from their data, the conclusion seems clear: “A majority of German Gen Y and Gen Z members prefer vegan meat to real meat, and cultured meat is more popular than beef and pork.”
The verdict seems less convincing than if new studies had been conducted a few years later: “Cultured meat is still unknown and not yet available on the German market,” the researchers say.
Eat the liver
New evidence supports the age-old complaint that children don’t want to listen to adults. “Kids don’t want to eat what they should be eating…” According to the title of Villa Reka Nickel’s study on child nutrition.
During that time, the country’s eating habits and food preparation practices changed dramatically, due to “the obligation to provide public meals and general work obligations”, the study said.
Nickel illustrates their problem with hate using photos, one of which is captioned, “Fried breaded luncheon meat and creamed split peas are one of the school lunch ‘staples,’ but they were never the most popular school lunch.”
There are certain meals that many children are reluctant to eat, and Nikel has investigated this harassment in detail: “In our research, fried liver was one such meal. In Eger, they dealt with this problem by serving only rice if the child did not want liver. In Özd, children were not given this option. When I asked about the possibility of serving children as much food as they wanted, the food service manager in Özd drew my attention to an important fact: ‘It’s illegal. Parents pay for it.'”
Statistics and Baboons
“Can non-human primates perform linear regression on graphs?” ask Lorenzo Ciccione and his colleagues in their study “Baboons as statisticians.” Their tentative answer is that, to some extent, they can, but the extent to which they can “depends on the individual.”
Marc Abrahams is the founder of the Ig Nobel Prize ceremony and co-founder of the journal Annals of Improbable Research. He previously worked on unusual uses of computers. His website is Impossible.
Do you have a story for feedback?
You can submit articles for Feedback by emailing feedback@newscientist.com. Please include your home address. This week’s and past Feedback can be found on our website.
Forest bathing is an ancient Japanese therapeutic technique dating back to the 1980s. It involves spending restorative time in forests and natural environments to connect with nature and achieve sensory relaxation. Despite sounding like hippie nonsense, there is scientific evidence emerging that supports the benefits of forest bathing.
This practice does not involve any nudity or water activities; instead, it encourages mindfulness, disconnecting from technology, light exercise, and escaping the sensory overload of the modern world. Research has shown that spending time in nature can have a positive impact on mental and physical health, reducing blood pressure, cortisol levels, and heart rate.
Studies on green space exposure have demonstrated significant improvements in various health markers, such as lower rates of diabetes, cardiovascular disease, and mortality. Forest bathing is taken seriously in Japan and South Korea, where doctors prescribe it as a therapeutic intervention for stress and hypertension.
A UK study on forest bathing led by Dr. Kirsten McEwan has shown promising results, including a 12% improvement in heart rate variability and enhanced mood. The mechanism behind these health benefits is believed to involve the stimulation of the parasympathetic nervous system and the release of chemicals by trees that boost the immune system.
Nature’s impact on long-term health outcomes is still being studied, but initial findings suggest that spending time in nature can have significant health benefits. Perhaps Western medicine is beginning to recognize and embrace the benefits of traditional practices like forest bathing, aligning with generations of knowledge that being outside in nature is good for overall well-being.
About our experts
Dr. Kirsten McEwan, Associate Professor of Health and Wellbeing at the University of Derby, is leading research on forest bathing through the Forest Therapy Hub.
Recent respiratory disease epidemics have attracted a lot of attention, yet most respiratory monitoring is limited to physical signals. Exhaled breath condensate (EBC) is packed with rich molecular information that can reveal various insights into an individual's health. Now, Professor Wei Gao and colleagues at California Institute of Technology have developed EBCare, a mask-based device that monitors EBC biomarkers in real time. For example, the EBCare mask can monitor asthma patients for their levels of nitrite, a chemical that indicates airway inflammation.
This diagram shows how the smart mask detects breathed chemicals, such as nitrite, an indicator of airway inflammation. Images by Wei Gao and Wenzheng Heng, Caltech.
“Monitoring a patient's breathing is routinely done, for example to assess asthma and other respiratory diseases,” Prof Gao said.
“However, this method requires patients to visit a clinic to have a sample taken and then wait for the test results.”
“Since COVID-19, people have started wearing masks. We can leverage this increased use of masks for remote, personalized monitoring to get real-time feedback on one's health from the comfort of one's own home or office.”
“For example, we could use this information to evaluate how effective a medical treatment is.”
To selectively analyze the chemicals and molecules in your breath, you first need to cool them down and condense them into a liquid.
In a clinical setting, this cooling step is separate from the analysis: Moistbreath samples are cooled in a bucket of ice or a large refrigerated cooler.
The EBCare mask, on the other hand, is self-cooling, according to the team.
The breath is cooled by a passive cooling system that integrates hydrogel evaporative cooling and radiative cooling to effectively cool the breath on the facemask.
“This mask represents a new paradigm for respiratory and metabolic disease management and precision medicine because wearing it daily allows for easy collection of breath samples and real-time analysis of exhaled chemical molecules,” said Wen-zheng Heng, a graduate student at the California Institute of Technology.
“Breath condensate contains soluble gases as well as non-volatile substances in the form of aerosols and droplets, including metabolic products, inflammatory indicators and pathogens.”
Once the breath is converted into liquid, a series of capillaries in a device called bioinspired microfluidics immediately transports the liquid to a sensor for analysis.
“We learned how to transport water from plants, which use capillary action to pull water up from the ground,” Professor Gao said.
“The analysis results are then sent wirelessly to an individual's phone, tablet or computer.”
“The smart mask can be prepared at a relatively low cost. The materials are designed to cost just $1.”
To test the masks, the authors conducted a series of human studies, focusing primarily on patients with asthma or COPD.
The researchers specifically monitored the patients' breath for nitrite, a biomarker of inflammation in both diseases.
Results showed that the masks accurately detected biomarkers indicative of inflammation in patients' airways.
In a separate experiment, the masks demonstrated that they could accurately detect subjects' blood alcohol levels, suggesting that they could potentially be used for field DUI checks and other alcohol consumption monitoring.
We also explored how the mask can be used to assess blood urea levels in the monitoring and management of kidney disease.
As kidney function declines, by-products of protein metabolism, such as urea, accumulate in the blood.
At the same time, the amount of urea in saliva increases, which breaks down into ammonia gas, leading to high ammonium concentrations in the breath condensate.
The study showed that the smart mask could accurately detect ammonium levels, closely reflecting the urea concentration in blood.
“Our smart mask platform for EBC collection and analysis represents a major advancement in the potential for real-time monitoring of lung health,” said Professor Harry Rossiter, director of the Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center.
“This concept, with the potential to add biosensors for a wide range of compounds in the future, highlights the groundbreaking potential of smart masks in health monitoring and diagnostics.”
It was this mystery that led botanist Kathy Willis on her latest mission. Former scientific director of the Royal Botanic Gardens, Kew, London, and now professor of biodiversity at St Edmund Hall, Oxford University, she says the discovery has changed her life. In her new book, Good NatureIn this article, she explores a growing body of research that illuminates what happens to our brains and bodies when we connect with nature. Though we tend to think of ourselves as a visual species, it turns out the benefits we derive from our other senses — smell, hearing, touch, and the mysterious “hidden senses” — are just as impressive, and sometimes even more so. There's still much to discover, but as she says, New ScientistWe have already learned many things that can improve our lives.
Kate Douglas: What happens when you observe nature?
A recent study indicates that individuals in the UK Biobank who utilized solariums and resided in regions with high annual average residential shortwave radiation were at a decreased risk of death from various causes, including cardiovascular disease and cancer. Solarium users also exhibited a lower risk of non-cardiovascular/cancer mortality.
Higher exposure to UV light was associated with lower all-cause mortality, cardiovascular disease mortality, and cancer mortality.
“In the UK and other nations with substantial European descendant populations, the emphasis of public health messaging has been on the dangers of ultraviolet (UV) exposure,” stated Professor Chris Dibben from the University of Edinburgh and his team.
“This is particularly concerning considering the established connection between UV radiation and melanoma development.”
“New findings suggest that the benefits of UV exposure might outweigh the risks, especially in low sunlight settings.”
“Among a group of Swedish women, those with higher sun exposure had a longer life span compared to those who avoided the sun.”
“The reduction in mortality rates is mainly linked to decreased cardiovascular and non-cardiovascular/non-cancer mortality.”
“In a study of Swedish women with moderate sun exposure habits, fair-skinned women had an 8% lower overall mortality rate compared to non-fair-skinned women.”
The study utilized genetic and health data from UK Biobank to examine UV exposure in 395,000 individuals in the UK.
Participants were limited to individuals of European descent with fair skin due to the impact of skin pigment on the body’s response to UV radiation.
Researchers utilized two criteria to identify individuals with higher UV exposure levels.
They assessed participants’ geographical locations to determine their average yearly solar energy exposure and whether they utilized sunbeds.
Living in regions with elevated UV levels, like Cornwall, was correlated with a lower risk of dying from cardiovascular disease and cancer (19% and 12% respectively) compared to regions with lower UV levels, such as Edinburgh and Glasgow.
Use of sunbeds was connected to a 23% reduced risk of cardiovascular disease death and a 14% lower risk of cancer-related death compared to non-users.
Given that sunbed users might also engage in more sunbathing, this result could reflect broader sun-seeking behaviors.
Individuals with higher estimated UV exposure showed a slightly greater risk of melanoma diagnosis but not an increased risk of mortality from melanoma.
“Our study contributes to the mounting evidence indicating that relatively high UV exposure in low-light environments could be advantageous for health,” Prof Dibben remarked.
“While increased UV radiation exposure may elevate skin cancer risk, this risk seems to be outweighed by the considerable reduction in cancer and cardiovascular-related disease mortality.”
“Dermatologists have traditionally only considered sunlight’s potential harm to the skin based on experiences of white individuals in sunny nations like Australia,” noted Professor Richard Weller from the University of Edinburgh.
“It is essential to safeguard your skin during periods of very high UV index, but this study indicates that the balance of benefits and risks from sun exposure in the UK may differ significantly from sunnier locales.”
Reference: Survey results Published in the journal Health and location.
_____
Andrew C. Stevenson others2024. Higher UV exposure is associated with reduced mortality: analysis of data from the UK Biobank cohort study. Health and location 89: 103328; doi: 10.1016/j.healthplace.2024.103328
If you like video games, playing them might not be something you need to worry about.
Asia Vision/Getty Images
Despite being an oft-maligned pastime, playing video games actually seems to make people happier, a finding that comes from a unique study taking advantage of the peak of the COVID-19 pandemic.
“I think that if you enjoy a hobby, it has a positive effect on your health.” Hiroyuki Egami At Nihon University in Japan.
In 2019, The World Health Organization has added “gaming disorder” It violates the International Classification of Diseases. However, studies on the effects of playing video games have produced mixed results when it comes to mental health outcomes, with many studies unable to prove causation. Studies that aim to prove causation are usually conducted in controlled laboratory environments, which “are far removed from the experience of actually playing video games,” the researchers say. Peter Etchells The researchers are from Bath Spa University in the UK but were not involved in the latest study.
But between 2020 and 2022, Egami and his colleagues had a rare opportunity to investigate the causal effects of video games on people's happiness in the real world. At the time, game consoles were in short supply, so lotteries were held in parts of Japan where people could enter to receive either a PlayStation 5 or a Nintendo Switch console.
The researchers surveyed 8,192 people aged between 10 and 69 who had entered such lotteries. Respondents answered questions about their gambling habits and levels of psychological distress, an indicator of mental health.
Egami and his colleagues found that people who won the lottery had slightly higher mental health scores than those who didn't, but that their scores plateaued once they exceeded about three hours of total play time per day.
The team also used machine learning models to analyze the data and found that the effects varied by console type and owner demographics. For example, younger people who own a Nintendo Switch saw greater benefits compared to older people. The team also found that people without children saw greater benefits from owning a PlayStation 5 than those with children.
“This highlights the need to be nuanced and specific about what we measure and how we measure it if we want to understand how video games affect us,” Etchells said, though he said participants self-reported the amount of time they played, which may not be accurate.
Etchells and Egami also note that the data was collected during the peak of the COVID-19 pandemic, which may have influenced people's video game habits and health. Further research using this methodology could reveal whether the trends hold in other contexts.
The movements of worm-like organisms in the soil produce unique sound patterns.
Vitaly Stock/Shutterstock
While they may not be as captivating as a dawn bird chorus, the sounds of ants, beetle larvae and earthworms recorded underground provide a snapshot of whether an ecosystem is healthy.
“The idea is that we can monitor soil health using the sounds made by invertebrates.” Jake Robinson At Flinders University, Adelaide, Australia.
He and his colleagues Mount Bald Conservation AreaThe project will involve 240 recordings over five days in spring 2023, with each recording lasting nine minutes, covering a 55 square kilometre area around a reservoir south of Adelaide.
Two sites had been cleared of trees approximately 15 years ago and maintained as grassland, two sites had been cleared but had regrowth of trees and bushes over the course of approximately 15 years, and the remaining two were intact grassland forests.
Robinson and his colleagues dug up soil samples at each site, placed them in containers, and placed them in sound-attenuating chambers — devices that allow them to record sounds from the soil in a controlled environment while filtering out other sounds. The researchers then examined the soil samples and counted the types and numbers of invertebrates present in each sample.
Jake Robinson (left) and his colleagues listen to sounds in the soil.
Tracy Klarenbeek
The researchers found that intact and revegetated plots contained more soil invertebrate species, including organisms such as beetle larvae, earthworms, centipedes, woodlice and ants, and generally more specimens, than did the clear-cut plots.
To analyze the noise, Robinson and his colleagues used a sound complexity index, which works on the premise that many biological behaviors, such as millipede movements, produce distinctive sound patterns.
More diverse sound activity corresponds to a higher index score and more species of organisms present. Soils in revegetated sites had an index score 21 percent higher than soils in deforested sites.
New dietary intervention studies Published in the journal Nature MedicineSwitching from a diet high in saturated animal fats to one high in unsaturated plant fats affects the composition of fats in your blood, which can affect your long-term disease risk.
Eichelmann othersThis shows that it is possible to accurately measure diet-related changes in blood fats and directly link them to the risk of developing cardiovascular disease and type 2 diabetes. Image courtesy of Tung Lam.
The World Health Organization (WHO) highlights the importance of a healthy diet in preventing chronic diseases and recommends replacing saturated fats with unsaturated fats from plant sources to reduce cardiometabolic risk.
However, limitations in existing research mean these guidelines are of moderate certainty.
The new study addressed these limitations by conducting a detailed analysis of fats in the blood, also known as lipids, using a technique called lipidomics.
These highly detailed lipid measurements have allowed researchers to innovatively combine different types of studies to link diet and disease.
This approach combines dietary intervention studies (using highly controlled diets) with previously conducted cohort studies with long-term health follow-up.
“Our collaboration provides conclusive evidence that diets low in saturated fat and high in unsaturated vegetable fats have health benefits and may help to provide targeted dietary advice to people who would benefit most from changing their eating habits,” said Professor Julie Lovegrove, from the University of Reading.
“Our study provides further conclusive evidence that diets high in unsaturated vegetable fats, such as the Mediterranean diet, are beneficial for health,” added researcher Dr Clemens Wittenbecher from Chalmers University of Technology.
The study included 113 participants from the DIVAS trial, a single-blind, randomized, controlled, parallel trial.
For 16 weeks, one group ate a diet high in saturated animal fats and the other group ate a diet high in unsaturated vegetable fats.
The blood samples were analyzed using lipid analysis techniques to identify specific lipid molecules that reflected the different diets consumed by each participant.
“We summarized the effects on blood lipids in a Multi Lipid Score (MLS),” said Dr Fabian Eichelmann, researcher at the German Institute of Human Nutrition in Potsdam-Rehbrücke.
“A high MLS indicates a healthy blood fat profile, and such good MLS levels can be achieved by consuming more unsaturated vegetable fats and less saturated animal fats.”
“These MLS results from dietary intervention studies were statistically associated with incident cardiovascular disease and type 2 diabetes in previous large observational studies.”
“These large cohort studies followed initially healthy participants for several years.”
Analysis of data from both studies showed that participants with a higher MLS, indicating a beneficial dietary fat composition, had a significantly reduced risk of developing cardiometabolic diseases.
Additionally, the scientists investigated whether people with lower MLS levels, indicative of a higher saturated fat content in their diet, particularly benefited from a healthier diet.
The Mediterranean diet, which focuses on consuming more unsaturated vegetable fats, was used in one of the large intervention trials known as the PREDIMED trial.
From this study, the authors found that the diabetes prevention effect was most pronounced in individuals who had low MLS levels at the start of the study.
“Because diet is so complex, it's often difficult to draw conclusive evidence from a single study,” Dr. Wittenbecher said.
“Our approach of combining a highly controlled dietary intervention study with lipid analysis and a prospective cohort study with long-term health follow-up can overcome current limitations in nutrition research.”
_____
F. Eichelmann othersLipid changes through improving the quality of dietary fats can aid in cardiometabolic risk reduction and precision nutrition. National MedPublished online July 11, 2024; doi: 10.1038/s41591-024-03124-1
This article is a version of a press release provided by the University of Reading.
Drinking alcohol is bad for you, but it is often a social activity.
Violeta Stoymenova/Getty Images
Rigorous research suggests that drinking even small amounts of alcohol can shorten your lifespan, and that only people with serious health problems would benefit from moderate drinking. That's the conclusion of a review of 107 studies that looked at how drinking alcohol at specific ages affects the risk of dying from all causes.
“People need to be skeptical of the claims that the industry has been peddling for years.” Tim Stockwell “They clearly have a strong interest in promoting their products as not cancer-causing but as life-prolonging,” said researchers from the University of Victoria in Canada.
Stockwell says people should be told that while the risks of moderate drinking are small, it's not beneficial. “It may not be as dangerous as a lot of other things, but it's important that consumers are aware,” he says. “I also think it's important that manufacturers inform consumers of the risks through warning labels.”
The best way to assess the effects of alcohol would be to randomly select people who drink and who don't drink as children, and then monitor their health and drinking for the rest of their lives. Because such studies are not possible, researchers instead have to ask people about their drinking habits and follow them over a much shorter period of time.
By the 2000s, a number of studies of this kind had been done, suggesting that the relationship between alcohol consumption and risk of death at a given age follows a J-shaped curve: drinking a little alcohol slightly reduces your risk of dying from any cause compared with a non-drinker, but as you drink more alcohol, your risk increases sharply.
Stockwell says he was convinced the science was well-established at the time, but he and other researchers have since Such studies have serious flaws.
The main problem is that they often don't compare people who have never drunk alcohol to people who have. Many studies instead compare people who no longer drink to people who still drink. People who stop drinking, especially later in life, often have health problems, so moderate drinkers seem healthy in comparison, Stockwell says.
Although some studies claim to compare current drinkers with “never drinkers,” the definition of the latter group often actually includes occasional drinkers, Stockwell says. For example, one study defined people who had up to 11 drinks a year as lifetime abstainers.
“In our opinion, the majority of research has not addressed this potential source of bias,” Stockwell says, “To be clear, people have tried to address this, but we don't think they've done so adequately.”
In fact, his team found that of 107 studies they reviewed, only six adequately addressed these sources of bias, and none of those six found any risk reduction with moderate drinking.
” [high-quality] “The research suggests a linear relationship,” Stockwell says, “the more you drink, the higher your risk of heart disease. Our study looks at total mortality, and it's clear that heart disease is the main issue.”
The review says that it is very clear that lower quality studies are more likely to suggest a beneficial effect. Duane Mellor At the British Dietetic Association.
But he points out that this doesn't take into account the social aspects of moderate drinking. “While it's healthier to socialize without drinking alcohol, the benefits of spending time with other people are likely to outweigh the risks of consuming one or two units of alcohol,” he says. “Perhaps the challenge is to limit alcohol intake in this way.”
Utilizing artificial intelligence to analyze GP records for hidden patterns has significantly improved cancer detection rates for doctors.
The “C the Signs” AI tool used by general practitioner practices has increased cancer detection rates from 58.7% to 66.0%. This tool examines patients’ medical records, compiling past medical history, test results, prescriptions, treatments, and personal characteristics like age, postcode, and family history to indicate potential cancer risks.
Additionally, the tool prompts doctors to inquire about new symptoms and recommends tests or referrals for patients if it detects patterns suggesting a heightened risk of certain cancer types.
Currently in use in about 1,400 practices in England, “C the Signs” was tested in 35 practices in the East of England in May 2021, covering 420,000 patients.
Published in the Journal of Clinical Oncology, a study revealed that cancer detection rates rose from 58.7% to 66.0% by March 31, 2022, in clinics using the system, while remaining similar in those that did not utilize it.
Dr. Bea Bakshi, who developed “C the Signs” with colleague Miles Paling, emphasized the importance of early and quick cancer diagnosis through their system detecting over 50 types of cancer.
The tool was validated in a previous study analyzing 118,677 patients, where 7,295 were diagnosed with cancer and 7,056 were accurately identified by the algorithm.
Notably, the system’s ability to predict if a patient was unlikely to have cancer resulted in only 2.8% of these cases being confirmed with cancer diagnosis within six months.
Concerned by delays in cancer diagnosis, Bakshi developed the tool after witnessing a patient’s late pancreatic cancer diagnosis three weeks before their death, highlighting the importance of early detection.
“With two-thirds of deaths from untestable cancers, early diagnosis is crucial,” Bakshi emphasized.
In the UK, GPs follow National Institute for Health and Care Excellence guidelines to decide when to refer patients for cancer diagnosis, guided by tools like “C the Signs.”
The NHS’s long-term cancer plan aims to diagnose 75% of cancers at stage 1 or 2 by 2028, utilizing innovative technologies like the Garelli blood test for early cancer detection.
Decision support systems like “C the Signs,” improving patient awareness of cancer symptoms, and enhancing access to diagnostic technologies are essential for effective cancer detection, according to healthcare professionals.
NHS England’s national clinical director for cancer, Professor Peter Johnson, highlighted the progress in increasing early cancer diagnoses and access to timely treatments, emphasizing the importance of leveraging technology for improved cancer care.
Have you heard of the carnivore diet? It’s a new trend that takes low-carb dieting to the extreme by eliminating all plant foods and only consuming animal-derived foods like meat, fish, animal fats, and dairy products. Proponents claim that plant toxins and agricultural practices used in plant-based foods can harm our health, and suggest that eliminating sugar by cutting out plant foods can promote weight management and metabolic health.
While there is no scientific evidence on the health effects of the carnivore diet, anecdotal reports suggest benefits like improved weight management, cardiac and metabolic health, cognitive function, reduced inflammation, improved digestion, and even resolution of autoimmune diseases. However, side effects such as bad breath, constipation, and headaches may occur initially.
Nutritionally, animal-based foods provide high-quality proteins, essential vitamins like B12, iron, zinc, selenium, and other nutrients. However, the lack of fiber from fruits, vegetables, nuts, and grains in a carnivore diet may raise concerns for long-term gut and heart health. Scientific studies have shown the benefits of plant foods in reducing the risk of diseases like cardiovascular disease, diabetes, and cancer, while high intake of red and processed meats can increase risks.
Proponents of the carnivore diet argue that it aligns with early human diets, but biological evidence suggests that humans evolved as omnivores who consumed both animals and plants. Transitioning to more sustainable and healthy food systems that consider the health of the planet is crucial, and excessive meat consumption may not support this goal. Ultimately, the choice to follow a carnivore diet may have long-term health implications and ethical considerations.
This article was first published on December 5, 2022.
We all have to deal with the uncomfortable topic of bowel movements, and the frequency at which we have them can vary greatly from person to person. Recent research suggests that the frequency of our bowel movements may have implications for our long-term health, revealing that there is an ideal amount of poop for a healthy individual.
A study conducted by scientists from the US Systems Biology Institute categorized individuals based on the frequency of their bowel movements:
Constipation (one or two bowel movements per week)
Low to normal (3-6 bowel movements per week)
High normal (1–3 bowel movements per day)
Diarrhea
Research indicates that the “Goldilocks Zone” for bowel movement frequency is having one to two bowel movements per day, which falls within the high normal range. This frequency is associated with the thriving of fiber-fermenting gut bacteria, suggesting that individuals in this zone may have similar gut microbiomes.
To achieve this ideal frequency, individuals are encouraged to adopt a high-fiber diet, ensure proper hydration, and engage in regular exercise. These habits are common among individuals in the Goldilocks Zone for bowel frequency.
The study, published in Cell Report Medicine, examined 1,400 healthy adults and explored the relationship between bowel movement frequency, age, sex, genetics, and gut microbiota. Results revealed that age, sex, and body mass index (BMI) significantly influence bowel movement frequency, with younger individuals, females, and those with lower BMI having more frequent bowel movements.
Irregular bowel movements can lead to issues as stool stagnates in the intestines, causing gut microbes to ferment proteins, potentially releasing harmful toxins into the bloodstream. This can contribute to organ damage and increase the risk of chronic diseases. Individuals with constipation were found to have higher levels of harmful by-products of protein fermentation, while those with diarrhea exhibited patterns indicative of liver damage.
Further research is being conducted to understand the connection between bowel movement frequency and mental health conditions like depression and anxiety. Dr. Sean Gibbons, the corresponding author of the study, emphasizes the importance of maintaining optimal bowel frequency for overall health and wellness.
Understanding the impact of bowel movements on various bodily systems can help identify early signs of organ damage and inform strategies to improve health and prevent chronic diseases in both healthy and at-risk populations. To learn more about this fascinating topic, visit Dr. Sean Gibbons’ profile.
Rats in John Cryan's lab were withdrawn and anxious, behaving in ways that mirrored those who had been bullied at work and suspected they might encounter the bully again.
Believe it or not, the good news is that they fed some of these rodents a slurry of microbes extracted from their own feces. This may sound unpleasant, but it had a surprisingly positive effect on their behavior. “That was surprising,” says Cryan, a neurobiologist at University College Cork in Ireland. “We found that the behavioral changes that were induced by stress were normalized, and they started to behave like normal animals.”
Even more surprising, the mental changes weren't brought about by changes to gut bacteria, but by modifying another key aspect of the microbiome whose importance is only now being recognized: viruses.
After all, our bodies are full of these viruses – trillions of stowaways that do no harm to our health, but instead play a key role in nurturing a beneficial microbiome and making us healthier. Recent studies have found that the influence of this “virome” can be found throughout the body, from the blood to the brain. The hope is that tweaking it might lead to new ways of treating a variety of ailments, from inflammatory bowel disease and obesity to anxiety.
Microbiome Diversity
Over the past decade, there has been growing interest in the microbiome (all the tiny organisms that live on and in our bodies), but that interest has focused primarily on bacteria. Until recently, it was assumed that…
Shapewear, also known as body shaping underwear, has gained immense popularity in recent years. In a society that values appearance and self-image, shapewear is seen as a quick and affordable solution to boost self-confidence by enhancing the fit and look of various outfits.
Functioning like a modern corset, shapewear targets areas like the waist, hips, thighs, and buttocks to compress and shape them, aiming to improve the fit of clothes and provide a sleeker silhouette, as suggested by marketing claims.
With advancements in fabric technology, modern shapewear is now more comfortable and breathable than ever before, appealing to a wide range of individuals seeking aesthetic and functional support for various occasions. It has become increasingly popular, especially with the rise of social media influencing body image awareness.
Unlike traditional shapewear made from rigid materials like steel and whalebone, modern shapewear uses breathable and stretchy fabrics such as spandex, nylon, and lycra. It is now popular among both men and women for its comfort and effectiveness.
Available in different styles and compression levels, shapewear caters to various needs. Certain types, such as waist cinchers and tummy control panties, target specific body parts to provide support and shape.
In addition to these, there are thigh shapers, torso-compressing camisoles, butt lifters with padding, and leg and arm shapers. Some companies even offer full bodysuits with built-in bras for total body shaping.
Sports compression clothing, while similar, focuses on enhancing athletic performance and muscle support rather than aesthetic enhancement. Designed with advanced breathable fabrics and graduated compression, sports compression wear is intended for physical activity and recovery periods.
Although shapewear appears to offer a convenient way to enhance confidence and fit, it does come with certain drawbacks to consider. Issues like digestive problems, circulatory and neurological issues, breathing problems, and skin irritation can arise from wearing shapewear, particularly if it is too tight.
When choosing shapewear, it’s important to select a comfortable fit that doesn’t restrict movement and to avoid wearing it for extended periods. Opting for breathable fabrics and hypoallergenic materials can help reduce the risk of skin irritation.
In conclusion, while shapewear can provide temporary aesthetic benefits, it’s essential to prioritize comfort and health when using it. Remember, true confidence comes from within, and it’s crucial to listen to your body’s needs.
My first encounter with Michael Mosley was at the BBC Summer Party. A recent documentary I had presented had just aired on horizon, making me eligible to attend the event. Feeling overwhelmed amongst the many celebrities present, I found solace at the bar, quietly observing the crowd, until Michael approached me.
“Hello, I’m Michael Mosley,” he introduced himself. I was well aware of who he was, and we ended up spending the evening conversing. Although I first worked with Michael at an event, that initial meeting at the party left a lasting impression on me. Despite not knowing me, he warmly welcomed me as a newcomer.
Michael’s extensive career as a producer, presenter, and writer at the BBC spanned over 40 years, establishing a unique style of ‘self-experimenting presenter’ in science presentations. He famously delved into self-experimentation, including infesting himself with tapeworms and popularizing the 5:2 intermittent fasting diet to manage his type 2 diabetes.
While Michael faced criticism for his methods, he aimed to communicate science rather than conduct formal experiments. His talent for simplifying complex concepts and making science accessible led to widespread education among audiences.
Personally, Michael served as a valuable mentor, offering practical advice and sharing techniques for effective communication in broadcasting. His influence extended to shaping my approach to interviews and on-camera presentations, guiding my work in academia and beyond.
In the midst of the COVID-19 pandemic, the importance of clear science communication has been highlighted, emphasizing the impact of effectively disseminating information on health issues. Michael’s contributions in this realm have greatly improved public health outcomes and potentially saved lives.
As a close colleague, respected mentor, and cherished friend, Michael Mosley will be deeply missed.
A recent study has shown that including just three baby carrots in your weekly diet can boost levels of beneficial carotenoids in your skin, particularly in young people.
These findings suggest that making small changes to your diet can have a significant impact on your health.
Researchers at Samford University conducted a study that revealed how incorporating baby carrots into your diet can increase carotenoids in your skin, which have various health benefits. When baby carrots were combined with a multivitamin containing beta-carotene, the levels of carotenoids in the skin increased even more significantly.
Carotenoids are compounds responsible for the vibrant colors of fruits and vegetables like red, orange, and yellow. They can only be obtained through diet and are used as an indicator of fruit and vegetable intake.
According to Mary Harper Simmons, a nutrition master’s student at Samford University and the study author, higher carotenoid intake leads to higher levels of antioxidants in the body, reducing inflammation and lowering the risk of chronic diseases like heart disease and cardiovascular disease.
Previous research has shown that consuming three times the recommended daily intake of fruits and vegetables for three weeks can increase carotenoids in the skin. This study aimed to create a convenient snack rich in carotenoids that people enjoy.
Results of the study were presented at the American Academy of Nutrition’s annual meeting in Chicago. Participants were randomly assigned to different dietary intervention groups, including consuming baby carrots, a multivitamin supplement, or a combination of both. The group that ate baby carrots saw a 10.8% increase in skin carotenoid scores, while the combination group had a 21.6% increase.
Going forward, the research team plans to explore different populations and other carotenoid-rich foods like sweet potatoes and green leafy vegetables.
About our experts
Mary Harper Simmons: A master’s student in nutrition at Samford University and presenter of the talk “Effect of a 4-week intervention with baby carrots or a multivitamin supplement on skin carotenoid scores in young adults” at the NUTRITION 2024 conference.
Engaging in discussions about diet and nutrition can often lead to passionate arguments, as I discovered when unintentionally becoming the focal point of a debate surrounding supermarket bread.
It all started with my opinion piece on “ultra-processed foods,” or UPF. For those unfamiliar, this term refers to foods that undergo industrial processes difficult to replicate at home. Examples include sweetened drinks, prepackaged foods, and supermarket bread. In the UK, approximately 50% of our caloric intake comes from UPF sources.
So, what makes UPF detrimental to our health?
Firstly, UPFs tend to be low in protein and fiber due to extensive processing, making them easily digestible and calorically dense. Secondly, the flavor is often diminished in UPFs, leading to high levels of sugar, salt, and fat being added for taste. Lastly, some argue that the processing involved in UPFs is inherently harmful, although the evidence supporting this claim is inconclusive.
A recent meta-analysis published in the British Medical Journal linked excessive UPF consumption to various health issues across different categories.
The ambiguity surrounding the UPF concept bothers me, as it encompasses a wide range of foods from highly processed items to minimally processed options like supermarket bread. Despite the negative connotations associated with UPFs, supermarket bread, a major source of UPF calories, still provides sustenance for many households.
The accessibility and affordability of supermarket bread make it a staple for individuals facing food insecurity. While premium bread offers unique qualities, such as lactobacterial fermentation, evidence supporting health benefits is growing.
An interview with Dr. Chris Van Tulleken highlighted the differences between traditional and supermarket bread, emphasizing the higher salt and sugar content in the latter. A rational discussion is essential to address the prevalence of UPFs, acknowledging the diverse preferences and circumstances of consumers.
In conclusion, while premium bread may offer distinct advantages, stigmatizing those who rely on supermarket bread is unjust. It is crucial to engage in constructive dialogues regarding our food choices without condemning individuals based on their bread preferences.
Exciting developments are on the horizon in the world of obesity medications.
Pharmaceutical companies are racing to create new drugs, building on the success of existing medications like Novo Nordisk’s Ozempic and Wegovi, as well as Eli Lilly’s Maunjaro and Zepbound.
In addition to targeting diabetes and weight loss, some experimental drugs show promise in improving liver and heart function while reducing common side effects such as muscle loss seen with current treatments. Data on 27 GLP-1 drugs in development will be presented at the 2024 American Diabetes Association meeting in Orlando, Florida.
According to Marlon Pragnell, PhD, the ADA’s vice president of research and science, the pipeline now includes a variety of drug candidates in different stages of development, creating an exciting landscape of innovation.
While most of the data currently available comes from animal studies or early human trials, some drugs may be available in the United States over the counter within a few years, with FDA approval likely further down the line.
As the field of GLP-1 drugs continues to expand, there is hope for more affordable medications with fewer side effects to become available, offering new possibilities for patients.
Exploring Different Hormones for Weight Loss
GLP-1 drugs function by slowing down the digestive process and promoting a sense of fullness. In addition to GLP-1, emerging weight-loss drugs are examining the impact of another hormone called glucagon, which can mimic the effects of exercise.
One such drug, Pemvidutide from Maryland-based Altimmune, combines glucagon with GLP-1 to potentially enhance weight loss effects.
Results from a Phase 2 trial involving obese or overweight adults showed promising weight loss outcomes, paving the way for further research into the drug’s potential benefits.
Altimmune’s Chief Medical Officer, Dr. Scott Harris, highlighted the drug’s ability not only to aid in weight loss but also to provide additional health benefits for liver and heart function while preserving lean body mass.
Altimmune plans to move forward with Phase 3 trials and aims to introduce the drug in the U.S. by 2028.
Competition and Cost Considerations
Having a variety of weight-loss drugs available can help address shortages and potentially drive down costs over time. The high prices of current medications like Wegobee and Zepbound in the U.S. can pose financial challenges for many patients.
Different patients may respond differently to various treatments, as highlighted by Dr. Fatima Cody Stanford of Harvard Medical School. Having a range of options is crucial to tailor treatments to individual needs.
Stay Informed with the Latest News on Weight Loss Drugs
New developments in the pharmaceutical world present opportunities for improved treatment outcomes and potentially life-changing solutions for patients struggling with obesity.
For individuals like Danielle Griffin, who have not seen the desired results from current medications, the prospect of innovative drugs offers hope and excitement for the future.
Advancements in Metabolic Health
Companies like Eli Lilly are exploring new combinations of hormones to enhance the efficacy of weight-loss drugs. Retatortide, a new injectable medication from Lilly, shows promising results in weight loss and blood sugar control.
Additional studies on drugs like Mazduchid highlight the potential for improved metabolic status and weight loss outcomes, paving the way for new treatment options in the near future.
These ongoing developments underscore the dynamic landscape of obesity treatment, offering hope for a new generation of medications that could revolutionize the field and improve outcomes for patients.
The Future of Obesity Treatment
As research and development in the field of obesity medications continue to advance, there is optimism for more effective, affordable, and patient-friendly treatments to become available in the coming years.
With the potential for improved metabolic health, weight loss outcomes, and reduced side effects, the next wave of obesity treatments holds great promise for individuals struggling with obesity-related health issues.
The ongoing innovation in this field signifies a new era of possibilities in obesity treatment, offering hope for a healthier future for many individuals.
When discussing diet and nutrition, opinions can often be divisive and passionate. Recently, I found myself in the middle of a debate surrounding supermarket bread that sparked unexpected backlash.
The controversy began after I wrote an article on “ultra-processed foods” (UPF). These foods are products of industrial processes that are difficult to replicate at home, including sweetened drinks, prepackaged foods, and most supermarket breads. In the UK, around 50% of our daily calories come from UPF (source).
UPF has garnered a negative reputation for several reasons. Firstly, these foods tend to be low in protein and fiber, making them easily digestible and calorically dense. Secondly, the processing of UPF often strips away natural flavors, leading to high amounts of added sugar, salt, and fat to enhance taste. Lastly, there are concerns that excessive consumption of UPF may lead to various health issues (British Medical Journal).
While the negative effects of UPF are well-documented, the term itself is vague, encompassing a wide range of foods from heavily processed items to minimally altered products like mass-produced supermarket bread.
In a response to my article, it was argued that real sourdough bread made through lactobacterial fermentation may offer health benefits that are lacking in supermarket bread. It was also noted that supermarket bread tends to be higher in salt and sugar, leading to potential weight gain.
While artisanal sourdough may provide some advantages over supermarket bread, it’s essential to consider the accessibility of such premium products to a broader demographic.
A balanced discussion on the prevalence of UPF in our food supply is necessary, but the demonization of supermarket bread, a staple for many households, may be unwarranted without substantial evidence of harm.
Astronauts Robert L. Curbeam Jr. (left) and Christer Fugelsang aboard the International Space Station
National Aeronautics and Space Administration (NASA)
How spaceflight affects astronauts' health may be better understood thanks to the creation of the first “space-omics” biobank, a collection of thousands of blood and tissue samples and medical information taken on multiple space missions.
These include missions to the International Space Station as well as SpaceX's Inspiration 4, the first private spaceflight to send four non-government-trained astronauts into space for three days in 2021.
The resource, called the Space Omics and Medical Atlas (SOMA), contains detailed medical data, collectively known as biomarkers, such as DNA damage and changes in people's gene activity and immune system function.
Space flight is known to pose certain health risks. For example, astronauts experience reduced bone density and muscle mass due to weightlessness, and high levels of radiation in space can damage cells and DNA, causing a variety of health effects on the body. Astronauts are more likely to develop heart disease Later years and Some people have experienced a decrease in vision After going into space.
By consistently collecting astronauts' medical data through the SOMA biobank, researchers may be able to better understand these changes and develop ways to mitigate them, the researchers say. Christopher Mason He is a professor at Weill Cornell Medicine in New York and helped establish the biobank.
“Biomarkers don't necessarily translate into anything clinically meaningful, but they're a good way to understand how this unique environment is affecting us.” Damien Bailey The researchers are from the University of South Wales in the UK, but were not involved in the study.
One of the findings from the Inspiration 4 mission was that although astronauts experienced changes in numerous biomarkers, most measurements returned to normal within a few months of returning to Earth.
This suggests that sending private citizens into space poses no greater health risks than sending professional astronauts, Mason said. “Instead of training them for decades, we can start opening up space to more people.”
Results from Inspiration 4, which had two men and two women on board, also suggested that changes in gene activity returned to normal more quickly in women. This may be because women's bodies have to be able to cope with the possibility of pregnancy, Mason says. “Being able to withstand big changes in physiology and fluid dynamics could be great for managing pregnancy, but it could also help manage the stresses of spaceflight.”
Timothy Etheridge A researcher from the University of Exeter in the UK says it would be beneficial to have a common resource that researchers around the world can use. “We need a consistent approach to collecting samples,” he says.
Thomas Smith The researcher, from King's College London, says understanding the health effects of spaceflight will become even more important if longer-term missions take place, such as trips to Mars. “Anything that leads to longer-term missions makes it even more important to know what's going on and, ideally, to be able to address it,” he says.
Having a positive mindset can have unexpected results
DEEPOL (Plain Picture/photo by Anja Weber Dekker)
Do you suffer from low self-esteem? If so, you may have been told to repeat phrases like, “I am worthy of love, I am worthy of love, I am worthy of love.” Repeating positive statements like these is called self-affirmation, and it's said to boost a person's mood and sense of worth. Sounds incredible, right? Well, it is. When psychologists tested the effectiveness of this mantra, it backfired. Participants who started out with low self-esteem ended up feeling worse. The problem was, they simply didn't believe what they were being told.
We know that a positive attitude is good for your health, and that the right mindset can really impact your health and happiness. But it turns out that too much of a good thing can be bad. What psychologists who study self-esteem have discovered is an example of “toxic positivity” – the idea that forcing yourself to interpret your experiences in an optimistic way and suppressing negative emotions can actually do you harm. The term has become something of a buzzword in both academia and pop culture. And yet, the messages that “happiness is a choice” and “positivity is a mindset” are rampant.
What is needed is a return to balance. It is not enough to say that excessive positivity is harmful; we need to know when, why and for whom it is harmful. Fortunately, there is a growing body of research addressing these questions. …
ohOne thing after another happened, and I was lying shirtless on the couch, with a wrinkled nose as a cardiologist explained that everything was fine, but that my heart was a little… weird. I can’t remember the exact words, but it was probably just above “quirky,” but not quite weird. He was looking at something else entirely, and had noticed that the valves at the top of my heart were a little weird. It had absolutely nothing to do with why I’d come here, and was unlikely to affect my future health in any way, he said. But now that he’d seen it, he thought it best to tell me. I asked if it was good to know, and he shrugged. “Sometimes?” he said vaguely. “It’s complicated.”
At home, I paid more attention than usual to my heartbeat, listening for any unusual sounds. A few months later, when I experienced what turned out to be indigestion, I went to the doctor, worried that my valve was about to burst. I had no history of anxiety disorders and had never paid much attention to what was going on inside my body, thinking it was inevitably unfathomable, like anything going on in the vast depths of the ocean. But once this flaw was revealed, I became uncomfortably aware of every moving part, of everything that might go wrong.
When I read Caroline Crampton’s recent detailed study of hypochondria, A body made of glass aptly describes health anxiety disorder as “a bodily illness that exists only in the mind,” and my hand immediately went to my chest. From 18th-century quack medicine to today’s health industry, Crampton traces the rise of drugs and devices promising relief from imagined ailments, such as the Zeebo pill (currently £73 on Amazon), which is promoted as a placebo and “you yourself are the active ingredient,” and plans for technology that can observe every part of our minds and bodies. But, she asks, can we ever know too much? Reading recent criticisms of blood glucose monitoring and the rise of the Zoe app, I thought of Crampton’s book. These are part of a growing trend for personalized diets, but along with other criticisms (such as a lack of evidence about their effectiveness), Professor Partha Carr, the NHS’s national diabetes adviser, told the BBC that using a continuous glucose monitor (designed for diabetics) for no health reason can make people obsessed with the numbers and, in some cases, “can lead to eating disorders.”
These are apps for “worried people” – healthy people who worry about their health – a growing market at a time when new technology and the old internet are stoking anxiety by providing vast amounts of knowledge to anyone with Wi-Fi. It’s a successful business model, in that they’re both apps for anxious people and apps that create anxious people. Parents are especially susceptible to marketing, with health anxieties projected onto their children. This month’s New YorkerJia Tolentino detailed her efforts to hide her pregnancy from her phone, which meant not buying baby clothes online, not using a period tracker, and not using pregnancy apps. She wanted to avoid being watched, which can be especially hard when you’re encouraged to watch yourself.
In the time it took me to give birth to my two children, there had been an explosion in the technology offered to parents who wanted to both track their pregnancies (through additional ultrasound scans, for example) and keep an eye on their babies (with devices like stuffed toys with hidden cameras or disks that attach to diapers that alert you when your baby rolls over). By 2020, I was surprised at how hard it was to buy, for example, a baby monitor that didn’t include a camera, didn’t require a Wi-Fi connection, and didn’t capture any data. And yet, despite the desire for parenting technology, Tolentino found that it rarely led to better outcomes for babies, but rather exacerbated or, worse, created the anxieties that led to the purchase of these devices. The control that anxious people seek by monitoring their babies and their bodies is an illusion.
This is disturbing, given the growing number of products targeted directly at them. The global wearable technology market (fitness trackers and other devices) is expected to be valued at $61.3 billion in 2022, and to expand significantly by 2030. My 9-year-old’s school friends regularly compare FitBits. But for some, trackers and the like may be doing more harm than good. New Statesman In 2019, a professor of cardiovascular medicine criticized a large study of atrial fibrillation (a common heart rhythm problem) in Apple Watch owners, saying there was no significant health benefit to testing low-risk people, “the kind of people who wear Apple Watches,” and that the study would “inflict substantial distress” on healthy people who would receive notifications about their irregular heartbeat.
Health anxieties have evolved alongside scientific knowledge, with phrases like “cyberchondria” (anxiety heightened by information found online) emerging and some research suggesting that our new loose connection to medical knowledge is making people more anxious rather than lessening it. I resent the way tech companies prey on these anxieties, creating new concerns for profit. I believe it’s true that we can know too much.
Every now and then, a small pain or memory in my chest will raise a chill and I’ll think about my deformed heart, but in those moments I will tell myself sternly that it’s none of my business what’s going on under the sea, or deep inside my body (as long as it doesn’t affect my life).
Email Eva at e.wiseman@observer.co.uk or follow her on X. Eva Wise man
A study by researchers from the University of Florida, Texas State University, and the United States Department of Agriculture suggests that an extract of the polar fraction of orange peel, which contains a compound called feruloylputrescine, may reduce cardiovascular disease.
Lee othersThe inhibitory effects of orange peel polar fraction (OPP) and orange peel non-polar fraction (OPNP) on the production of trimethylamine (TMA) and trimethylamine N-oxide (TMAO) in response to L-carnitine treatment were compared. In vivo and In vitro.
Recent studies have shown that some gut bacteria may contribute to the development of cardiovascular disease.
During digestion, gut bacteria produce trimethylamine N-oxide (TMAO) when certain nutrients are ingested, and levels of TMAO can help predict future cardiovascular disease.
In a new study, Dr. Yu Wang from the University of Florida and colleagues investigated the potential of orange peel extract to reduce the production of TMAO and trimethylamine (TMA).
They tested two types of extracts: a polar fraction and a non-polar fraction.
To obtain the polar fraction, they extracted orange peels using polar and non-polar solvents.
“Think of a salad dressing. The things that are in the water and vinegar section are polar compounds. The things that are in the oil section, away from the water, are non-polar compounds,” says Dr. Wang.
“The solvents we used are not exactly the same as water and oil, but they have a similar polarity.”
The authors found that extracts of the non-polar fraction of orange peel effectively inhibited the production of harmful chemicals.
The researchers also identified a compound in the polar fraction extract of orange peel called feruloylputrescine, which also significantly inhibited the enzyme involved in TMA production.
“This is a novel discovery that highlights a previously unrecognized potential health benefit of feruloylputrescine in reducing the risk of cardiovascular disease,” Dr Wang said.
“The discovery regarding orange peel is significant because five million tonnes of orange peel are produced annually in orange juice production nationwide.”
“About 95 percent of Florida oranges are used for juice. About half of the peels are used to feed cows. The rest are discarded.”
“But the FDA considers natural orange peel extract to be safe for human consumption, so we're looking to get more out of the peel.”
“These findings suggest that orange peels, which are often discarded as waste in the citrus industry, could be repurposed into valuable health-promoting compounds, such as ingredients in dietary supplements and foods,” Dr Wang said.
“Our study paves the way for the development of functional foods enriched with these bioactive compounds, providing a new therapeutic strategy for heart health.”
of result Appears in Journal of Agricultural and Food Chemistry.
_____
Hana Lee others2024. Discovery of novel bioactive compounds from the polar fraction of orange peel and their inhibition of trimethylamine and trimethylamine N-oxide by a metabolomic approach. In vitro and In vivo Assay: Feruloylputrescine inhibits trimethylamine by suppressing the cntA/B enzymes. Journal of Agricultural and Food Chemistry 72(14):7870-7881; doi:10.1021/acs.jafc.3c09005
Cocoa swollen bud virus disease It is one of the most economically damaging cocoa tree diseases, accounting for almost 15-50% of crop losses in Ghana. This virus is transmitted when several species of mealybugs feed on cocoa plants.
A cacao tree with cacao fruit attached directly to the trunk or branches.Image credit: Gamera other., doi: 10.1094/PDIS-10-22-2412-FE.
Cocoa swollen shoot virus disease (CSSVD) first observed Infected by farmers in the eastern region of Ghana in 1936, the nature of the virus was identified in 1939.
CSSVD is considered the most economically damaging cocoa virus disease and can cause yield losses of 15-50% when severe strains are involved in infection.
Cocoa swollen shoot virus (CSSV) is classified as a member of the plant-infecting pararetroviruses of the genus Cocoa swollen shoot virus. badnavirus It contains nonenveloped rod-like particles that encapsulate a circular double-stranded DNA genome.
Previously, isolates and strains were grouped according to severity of symptom onset and geographic origin.
CSSVD is currently known to be caused by the following causes: complex of badnavirus seed Based on molecular structure.
CSSV affects all parts of the cocoa plant. Symptoms seen on leaves include red vein stripes on immature “flush” leaves, green-green vein spots or stripes that can occur in angular spots, removal of green-green veins, and various shapes Includes mosaic symptoms.
The virus causes swelling of the stem (nodes, internodes, tips) and roots.
In some strains, the infected pods change shape, becoming rounder and smaller and with a smoother surface.
“This virus is a real threat to the world's chocolate supply,” said Professor Benito Chen Charpentier, a researcher at the University of Texas at Arlington.
“Pesticides are ineffective against mealybugs, so farmers try to prevent the spread of the disease by cutting down infected trees or breeding resistant trees. However, Ghana has lost more than 254 million cocoa trees in recent years.
Farmers can combat mealybugs by vaccinating trees with CSSV. But vaccines are expensive, especially for low-wage farmers, and vaccinated trees produce less cocoa, making the damage caused by the virus even worse.
Electron micrograph of swollen shoot virus particles in purified cocoa. Scale bar – 200 nm.Image credit: Gamera other., doi: 10.1094/PDIS-10-22-2412-FE.
Professor Chen Charpentier and colleagues have developed a new strategy. Use mathematical data to determine how far apart farmers can plant vaccinated trees to prevent mealybugs from jumping from one tree to another and spreading the virus That's what it is.
“Mealybugs have several ways of getting around, including moving from canopy to canopy, being carried by ants, and being blown by the wind,” Professor Chen Charpentier said.
“What we needed to do was create a model for cocoa farmers to vaccinate unvaccinated trees to prevent the spread of the virus while making costs more manageable for smallholders. The goal was to be able to know how far away a tree could be safely planted.”
By experimenting with mathematical patterning techniques, the authors create two different types of models that allow farmers to create a protective layer of vaccinated cocoa trees around unvaccinated trees. Did.
“Although still experimental, these models are exciting because they can help farmers protect their crops while achieving better yields,” said Professor Chen Charpentier.
“It’s good for farmers’ bottom lines and it’s good for the world’s chocolate addiction.”
a paper The findings were published online in the journal PLoS ONE.
_____
FB Agusto other. 2024. Cocoa Sustainability: The Case of Cocoa Swollen Bud Virus Co-infection. PLoS ONE 19 (3): e0294579; doi: 10.1371/journal.pone.0294579
If you’ve ever felt like your cognitive abilities are not as sharp as they used to be, you might be struggling to recall names of actors or politicians in the news, for example. Perhaps mental arithmetic is not as easy for you anymore. This reflection may lead you to ponder the state of your brain and whether it’s on a downward trajectory.
It’s important to consider these aspects early on because brain development typically peaks in your 20s, and then cognitive functions gradually decline with age. Additionally, there is a growing risk of dementia, particularly associated with diseases like Alzheimer’s, in aging populations. However, both cognitive decline and dementia risk can be influenced by what experts call “modifiable risk factors,” offering a beacon of hope that there are lifestyle changes you can make to maintain mental acuity and lower the risk of dementia.
Be mentally active and boost your cognitive reserve
Psychologists and gerontologists often talk about cognitive reserve, which refers to the brain’s ability to adapt to aging and disease challenges. People with high cognitive reserve can perform well on cognitive tests despite exhibiting biological markers of Alzheimer’s disease, like protein build-up that impairs brain function. Engaging in activities such as reading, learning a new language, solving puzzles, and playing musical instruments can help boost cognitive reserve and maintain mental agility.
Interact with others
While brain-training games may not have broad benefits beyond the specific tasks they target, socializing with peers has been found to be a potent brain-training activity. Social isolation is considered a major risk factor for dementia, emphasizing the importance of engaging in lively conversations, joining clubs, or volunteering to keep your brain active and healthy.
Stay physically active
Physical activity not only benefits cardiovascular health but also contributes to better brain function and reduced cognitive decline. Incorporating exercises like running, swimming, or even gardening into your routine can help maintain cognitive abilities and lower the risk of dementia.
Eat a healthy diet
Avoiding excessive saturated fats and consuming plenty of fruits and vegetables can support brain health by eliminating harmful byproducts and providing essential nutrients. The Mediterranean diet, rich in fruits, vegetables, legumes, nuts, and olive oil, has been recommended for its brain-protective properties.
Stay curious
Personality traits like openness to experience are linked to better brain health and lower dementia risk. Activities that spark curiosity and awe can enhance cognitive abilities and mental flexibility. Incorporating habits like exploring new environments, trying new experiences, and enjoying cultural activities can promote brain health.
Think positively
Your mindset about aging can significantly impact your brain health. Maintaining a positive outlook, along with engaging in mentally stimulating activities and healthy habits, can contribute to long-lasting mental sharpness. Seeking out positive role models and adopting a proactive approach to brain health can help unlock your brain’s full potential.
It feels harsh. Losing one precious hour of sleep tonight.
As Daylight Saving Time (DST) begins in the UK during the summer months, clocks are scheduled as follows: Move forward one hour tonight to 1 a.m. local time.As a result, the new local daylight saving time will be 2:00 AM.
Scientists are concerned that switching to daylight saving time could have negative effects on health, including an increase in strokes, heart attacks, car accidents, and sleep deprivation, according to neurology professor and director of Vanderbilt’s sleep division, Dr. Beth Murrow in an interview with BBC Science Focus.
The impact of “springing forward” is experienced not only by the elderly but also by young people. A study published in the Journal of Clinical Sleep Medicine found that teens lost an average of 2 hours and 42 minutes of sleep on weeknights after the time change in 2015.
“We need morning light to wake up, set our body clocks, improve our mood, use light boxes in the morning to treat seasonal affective disorder, and sleep better at night.” Light promotes sleep at night, but light at night disturbs sleep,” Murrow explains.
Don’t worry, there are ways to combat the lost time. Here are some simple strategies:
1. Adjust your bedtime earlier for a few days before changing your clock.
If it’s too late this time, keep this in mind for the future. Sleep experts recommend going to bed 15 to 20 minutes earlier each night during the week leading up to daylight saving time.
Temporary insomnia symptoms affect about 30 to 35 percent of adults and can be caused by sudden changes in sleep schedules, such as the transition to daylight saving time, according to the American Academy of Sleep Medicine.
Gradually adapting to the time change will help you adjust and even get extra sleep during the transition, says Murrow.
If you’re feeling drowsy, it may be helpful to go to bed a bit earlier tonight.
2. Get exposure to bright light in the morning
DST aims to provide an extra hour of sunlight in the evening for socializing after work, but it can disrupt your natural sleep-wake cycle or circadian rhythm.
To wake up in the morning and improve your sleep at night, exposing yourself to bright light is key. Natural light is preferred, especially in the summer when the sun rises earlier, according to Murrow.
“Exposure to bright morning light helps regulate your body clock, making it easier to sleep at night,” she explains.
3. Skip long naps and late-day caffeine, opt for exercise instead
If you enjoy naps, this may be disappointing news. But if you want to improve your sleep, avoid napping and caffeine.
Naps and caffeine can diminish your sleep drive, says Murrow. She suggests exercising instead.
Just remember, don’t exercise right before bed. Exercise can disrupt sleep as it raises your core body temperature and releases endorphins.
Research recommends waiting at least 90 minutes between exercising and going to bed to improve sleep quality, according to the European Journal of Sports Science.
4. Avoid using your phone before bedtime
It’s a well-known fact that using your phone before bed isn’t ideal, particularly when the clock shifts forward an hour.
Bright light in the morning helps wake you up, whereas bright light at night can hinder sleep. LED screens emit blue light, making them especially problematic at night.
Blue light disrupts the natural release of melatonin in the brain, says Murrow. Melatonin acts as a sleep switch by signaling the brain to rest when levels rise.
It may be time to eliminate daylight saving time
Despite strategies to mitigate the impact of clock changes, many experts advocate for eliminating this outdated system altogether.
Is it time for standard time to become the new norm?
alice gregory a professor of psychology and director of the Goldsmiths Sleep Institute, believes that living on a permanent standard time schedule offers health benefits. “Most people are tired of literally going back and forth,” Murrow agrees.
About our experts:
Dr. Beth Murrow is a board-certified neurologist and sleep medicine specialist, an associate professor of clinical research, and the director of Vanderbilt’s Sleep Division. She conducts research on the relationship between medical diseases and sleep, as well as genetics and circadian biology.
alice gregory is a psychology professor at Goldsmiths University and has contributed to various research areas including the link between sleep and psychopathology, behavioral genetics, and sleep disorders. She is also known for her public engagement in science and has published popular science books.
A recent report accuses Meta and Google of obstructing information about abortion and reproductive health in Africa, Latin America, and Asia.
MSI Reproductive Choices and the Center to Combat Digital Hate claim that while these platforms restrict advertising for local abortion providers, they don’t limit public access to reproductive health care, leading to the spread of damaging misinformation.
Mehta has agreed to review the findings of the report.
MSI, operating in 37 countries, has had ads containing sexual health information rejected or removed by the platforms.
MSI Ghana and Vietnam reported that their ads promoting reproductive health content were removed or flagged as violating community guidelines.
Whitney Chinogwenya, Global Marketing Manager at MSI, expressed concerns about the censorship of reproductive health content on social media platforms like Facebook, which many women rely on for information.
MSI Mexico faced removal of a Facebook post promoting legal abortion services despite the recent decriminalization of abortion in some states.
The report highlighted Meta’s inaction against anti-abortion misinformation and misleading content about abortion procedures.
The report also revealed fake MSI pages on Facebook that exploit the organization’s reputation for various malicious purposes.
MSI clinics in Ghana were targeted by disinformation campaigns on messaging platforms.
MSI Ghana Advocacy stresses the importance of fact-checking systems on digital platforms to promote accurate reproductive health information.
The report, compiled from interviews and evidence from MSI teams in several countries, aims to raise awareness among digital platforms about their responsibilities.
Meta and Google responded to the report’s allegations, with Meta emphasizing its policies against false information and Google denying any inconsistent enforcement on its platforms.
Both companies stated their commitment to ensuring accurate and compliant advertising on their platforms.
Imagine waiting for your school exam results or having a dental appointment on the horizon. Many believe that preparing for uncertain outcomes by expecting the worst is a good strategy.
This way, you won’t be as shocked if the test results are disappointing or the dentist visit is unpleasant. Hence the phrase “hope for the best and plan for the worst.” But is this approach truly beneficial?
According to psychological research, the answer is no.
One downside of preparing for the worst is that it can lead to feeling sad and anxious before an event. By convincing yourself that something bad will happen, you are setting yourself up for negative emotions.
Thinking positively and expecting things to go well can actually make you feel better before your exam results or dental appointment. But what about when things don’t go as planned?
Unfortunately, research shows that people feel just as bad about disappointing outcomes whether they anticipated them or not. This applies immediately and even after the results are known.
Similar research has found that having negative expectations about a task like public speaking can make you feel worse, not better, right after performing it. The idea of emotional defensiveness doesn’t seem to work well.
These findings are relevant to the debate around trigger warnings, which aim to prepare individuals for emotionally challenging content. However, studies indicate that trigger warnings are not effective in emotional protection.
Concerns about over-optimism and complacency are valid, but optimism can boost motivation. Optimistic individuals tend to put more effort into their studies and typically achieve better grades as a result.
The key is to combine optimism with effort. Simply hoping for the best without taking action is not a sound strategy. Are you thinking positively and putting in the work needed to succeed?
If you have any questions, please email us at: questions@sciencefocus.com or send us a message on Facebook, Twitter, or Instagram. Remember to include your name and location.
Check out our ultimate Interesting Information and more amazing science pages.
In the UK, there are over 11 million people aged 65 and above, a number expected to rise to 13 million, constituting 22% of the population in a decade. This demographic change has drawn attention to often overlooked health issues, particularly in women: osteoporosis and bone fractures.
Globally, over 8.9 million osteoporotic fractures occur annually, equating to one osteoporotic fracture happening every three seconds somewhere in the world.
But why does bone health deteriorate with age? Our bones house specialized cells known as osteoblasts that generate new bone tissue. Conversely, osteoclasts are cells at the other end of the skeletal cycle responsible for dissolving old, damaged bone tissue and replacing it with fresh, healthy tissue.
The balance of activity between these cell types is crucial for bone health. Up to the age of 30, osteoblast activity generally exceeds osteoclast activity, resulting in more bone formation than loss. However, as individuals reach 35, osteoclast activity becomes dominant, leading to a gradual decline in bone quality and density.
Most concerning is the rapid decrease in estrogen production in postmenopausal women, which triggers increased osteoclast activity due to reduced osteoblast numbers and extended osteoclast lifespans. This change is believed to contribute to osteoporosis development.
read more:
When a certain level of bone density loss occurs, osteopenia may develop, leading to extremely low bone density and increased fracture risk, potentially progressing to osteoporosis. This condition is often referred to as “bone thinning,” but it results from changes in bone density, microstructure, and quality that compromise bone strength.
Unfortunately, both osteopenia and osteoporosis are typically asymptomatic until a fracture occurs, making diagnosis incidental. Various risk factors may contribute to the development of these conditions, including smoking, thyroid disease, diabetes, and certain medications like steroids.
Preventive measures for bone health should be initiated early. A balanced, calcium-rich diet is crucial, with dairy products serving as primary sources of calcium. Individuals with restricted dairy intake may need calcium supplements, emphasizing the importance of vitamin D production through sunlight exposure or supplementation.
While calcium and vitamin D are essential for bone health, engaging in bone-straining exercises, especially resistance training, can stimulate osteoblast activity, preventing osteoporosis progression. Exercise not only enhances bone mineralization but also improves muscle strength, balance, and posture, reducing the risk of falls and fractures.
For menopausal women, exercising efficacy in promoting bone mineralization hinges on adequate calcium and vitamin D intake, making supplementation vital. Additionally, various medications are available to treat or slow osteoporosis progression, with estrogen therapies recommended for menopausal women, particularly those with premature ovarian insufficiency.
Education and awareness about bone health can significantly impact prevention and proper management of osteoporosis, especially as societies aged. Addressing these issues is crucial as we navigate the future of an aging population.
Prince Harry, who caused an uproar in the press last year, wrote candidly in his memoirs: spare About taking ketamine to cope with his mother’s death. He’s not the only one talking about this substance. The substance was previously known primarily as a tranquilizer for horses and a psychedelic rave drug. It’s hard to keep track of the many celebrities who have openly talked about taking ketamine to improve their mental health.
Hundreds of clinics have opened across the United States offering intravenous infusions of the drug at point of care, a trend now extending to the United Kingdom. Pioneering companies concerned about the mental health of their employees are beginning to offer this therapy as a benefit. Some companies even floated the idea of setting up ketamine clinics at their headquarters. Meanwhile, pharmaceutical companies are developing over-the-counter ketamine products such as lozenges and topical creams. This drug has become the most commonly available psychedelic therapy.
This may sound like good news, given the growing evidence that ketamine can treat depression, post-traumatic stress disorder, and addiction. However, its use in the treatment of mental health conditions is still novel and many uncertainties remain. Possibly influenced by its popularity as a therapeutic agent, illicit use is also on the rise.
All of this means it’s time to ask whether ketamine can really relieve mental health problems, how it works, and are there any risks to its newfound popularity? is. Psychiatrist…
Palestinian children wait for food prepared in a charity kitchen as food supplies run short in Rafah
Ismael Mohamad/UPI/Shutterstock
The situation in Gaza is rapidly evolving into the worst humanitarian crisis in modern memory, and international health organizations have no long-term plan to address the region’s post-war needs.
More than three-quarters of Gaza’s 2.2 million residents, half of whom are children, are internally displaced, trapped in one of the world’s most densely populated areas and without access to food, water, or health care. Since October 7, when Hamas militants in Gaza invaded Israel, killing more than 1,000 civilians, Israel has heavily bombed the enclave, disrupting the flow of humanitarian aid and destroying civilian infrastructure. As a result, more than 30,000 Palestinians, mostly women and children, were killed, and more than 72,000 were injured in Gaza, according to the United Nations.
But these numbers only mark the beginning of a public health disaster. Those who survive the war will face lifelong health effects. Thousands of Palestinians will be living with missing limbs, weakened immune systems, mental illnesses, and other chronic illnesses. Meeting their health needs will be a decades-long undertaking, and no global aid organization has adequately planned for it.
The World Health Organization, World Food Programme, UNICEF, Palestine Red Crescent Society, CARE International, Mercy Corps, and Médecins Sans Frontières all have specific projects to address health needs in the Gaza Strip, according to information shared by the organizations. Lack of long-term planning. new scientist. Save the Children and the International Committee of the Red Cross did not respond to questions about long-term plans.
unprecedented humanitarian disaster
The lack of planning for health needs in the coming decades contributes to the enormity of the current humanitarian crisis. Most of Gaza’s residents live in crowded conditions without sewage treatment or garbage removal. On average, people can consume less than 1 liter of clean water per day. As a result, infectious diseases spread.
A survey conducted in a limited number of shelters in December and January found that at least 90% of children under 5 years of age have one or more infections, and 70% have experienced diarrhea within the past 2 weeks. “And it doesn’t take into account the hundreds of thousands of people who are not in refugee shelters,” he says. Margaret Harris At WHO.
Hunger is also widespread. Almost two-thirds of households have one meal a day, and a quarter of the population faces imminent hunger and extreme malnutrition. The situation is most dire in northern Gaza, where one in six children is malnourished, according to the study. The Gaza Ministry of Health reported on March 7 that 20 people had died, including: 15 children Some died from malnutrition and dehydration. Inadequate monitoring means these numbers could be even higher.
“The problem with child malnutrition is that it causes further disease,” says Tanya Hadji-Hassan of Médecins Sans Frontières. Malnourished children are more susceptible to infections, and the lining of their intestines wears down, making it difficult to absorb nutrients. “So they become even more malnourished, their immune system weakens, and it just creates this vicious cycle that snowballs into death,” she says.
Bombing left much of the territory in danger. By December, UNICEF 1000 children On average, more than 10 children per day have lost one or both legs since the conflict began. And there are few options for receiving treatment for these injuries. As of February 21, only 18 of Gaza’s 40 hospitals are still functioning, but with reduced capacity. “They don’t have drugs. They don’t have machines. They don’t have power. They might have a few doctors running emergency rooms. So there’s not really a functioning medical system. I don’t,” he says. serena victor At Mercy Corps.
The overwhelming humanitarian crisis has thrown health institutions into chaos. “Never in modern history have we seen this level of violence, terror, fear, and deprivation perpetrated against any nation,” Harris said. “In a sense, we are exploring uncharted territory.”
Gaza’s impending public health crisis
Even if the war were to end tomorrow, survivors would face lifelong health consequences. Many will have physical disabilities. Some people suffer from severe mental illness. Some people develop chronic lung disease, heart disease, and cancer from chemical contaminants in bombs and destroyed buildings, Harris said.
The effects will be most severe on children. Sustained malnutrition early in life stunts growth and impairs brain development, leading to deficits in cognition, memory, motor function, and intelligence, Haji Hassan said. Your child’s immune system will also be weakened, making them more susceptible to illness. Studies have shown that malnutrition during pregnancy increases the risk of your baby developing obesity, high blood pressure, heart disease, and type 2 diabetes.a February report One in five pregnant women treated at Gaza clinics was malnourished, as was one in 10 children seen there, according to research by the international aid group Project Hope.
But the most widespread harm may be the impact on mental health, Harris said. “Imagine what it’s like for people who are going through this situation relentlessly every day. They feel terrible uncertainty. Where to go, what will happen next? You never know where your next bit of food is going to come from,” she says. Such traumatic experiences are associated with depression, anxiety, post-traumatic stress disorder (PTSD), and suicidal thoughts. For children, this trauma can disrupt brain and organ development and increase the risk of learning disabilities and mental health conditions. Without early intervention, these problems can persist into adulthood. “There’s going to be a huge burden of mental illness going forward, and it’s going to be very difficult to deal with,” Harris said.
Even adults who experienced adversity in childhood 12 times more risk Develop alcohol and drug use disorders and attempt suicide. They are also more likely to have physical health conditions such as heart disease and cancer. Young people who survive conflict are almost three times more likely to develop severe mental illness, including psychosis, than young people who have not experienced war.
Current postwar plans are not enough
Given these results, there is a need to establish a long-term health plan for Gaza. Such plans should address rebuilding infrastructure, developing mental and physical rehabilitation programs, and regular disease screening.
“It seems ridiculous for city officials to say what will happen now when people are dying trying to get a handful of bread for their families. It just doesn’t do the math,” Victor said. Masu. “But we need to think about it.”
But most organizations are just getting started. The few organizations that have protocols in place, such as the Palestinian Red Crescent Society and CARE International, are working for the next year or two, but not for decades. WHO is developing a plan to address health needs from April 2024 until the end of the year. “We are working on several different scenarios. A good scenario would be a ceasefire, so that we can really look at things. [long-term plans]” says Harris. Another possibility is that there is a war going on.
This uncertainty, along with the pressing question of who will govern Gaza in the aftermath of the conflict, makes preparing for the future extremely difficult. “The reason why we so desperately want not just a ceasefire, but a peaceful solution, is because until that happens, any plan or even consideration is just a castle in the air,” Harris said. says.
Israel restricts aid groups’ access to the area, making the few workers in Gaza unable to operate safely. “Half the time they can’t do anything. They can’t move around safely. Basic things like communications continue to be cut off,” Victor says. And many of them died. For example, a 29-year-old man who is a member of WHO’s limb reconstruction team in the Gaza Strip. Dima Abdullatif Mohammed AlhajiHarris said she was killed along with her six-month-old baby, two brothers, and her husband in an Israeli airstrike.
These risks and obstacles complicate long-term planning. “You can make any plan you want, but if you don’t know your needs, you won’t have a very useful plan,” he says.
Dealing with the widespread destruction in Gaza will require huge sums of money. Margaret Harris of the World Health Organization says early estimates suggest $204.2 million will be needed to fund health emergency planning in Gaza in 2024 alone. .
Meanwhile, a spokesperson for the Palestinian Red Crescent Society said the organization has a budget of $300 million for the campaign in Gaza, which is expected to run until the end of 2025. Approximately $38 million of this will be used for the health sector, including replenishing medical supplies. We are supplying supplies, deploying additional ambulances, and preventing infectious diseases.
This cannot begin to address the long-term health needs of Palestinians in Gaza. It’s difficult to estimate what will be needed now, but over the long term, “I think it’s safe to say it’s going to be in the billions of dollars,” Harris said.
It feels unfair. I will be sacrificing an hour of sleep tonight.
With Daylight Saving Time (DST) starting in the United States in the summer, the clocks are set to move forward by an hour tonight at 2 a.m. local time. This means the new local daylight saving time will be 3:00 AM.
Scientists are expressing concerns that apart from causing sleepiness, the transition to daylight saving time could have adverse effects on our health. According to Dr. Beth Murrow, a neurology professor and director of Vanderbilt’s sleep division, the clock change leads to a slight increase in strokes, heart attacks, car accidents, and sleep deprivation.
The impact of “springing forward” is not limited to the elderly but also affects young people. Research published in the Journal of Clinical Sleep Medicine revealed that teenagers lost an average of 2 hours and 42 minutes of sleep on weeknights after the time change in a 2015 study.
Dr. Murrow emphasizes the importance of morning light for setting our body clocks, improving mood, and aiding sleep. She suggests that the shift in light from morning to evening due to changing clocks for almost eight months could have health effects.
Despite the challenges posed by losing an hour of sleep, there are practical tips to counteract the effects:
1. Adjust your bedtime earlier for a few days before the clock change.
Experts recommend gradually going to bed 15 to 20 minutes earlier each night in the week leading up to daylight saving time.
American Academy of Sleep Medicine mentions that around 30 to 35 percent of adults experience temporary insomnia symptoms due to sudden changes in sleep schedules, such as the clock change.
Adapting slowly to the new time can help ease the transition and provide some extra rest,” says Dr. Murrow.
2. Get exposure to bright light in the morning
Daylight Saving Time aims to extend daylight in the evening, but this may disrupt your natural sleep-wake cycle. Exposing yourself to natural light in the morning can help set your body clock, making it easier to sleep at night.
3. Avoid long naps and late-day caffeine, opt for exercise instead
Avoiding long naps and caffeine late in the day can help regulate your sleep. Instead, engage in physical activity which can promote better sleep at night.
Exercise should be done at least 90 minutes before bedtime to avoid disruptions in sleep caused by increased endorphins and core body temperature.
Read more:
4. Limit screen time before bed
Exposure to blue light from screens like cell phones can interfere with melatonin production, affecting sleep. Try to avoid using electronic devices before bedtime to promote better sleep.
Watching content with blue light before bed, like news, can hinder relaxation and sleep after the clock change.
Consider abolishing Daylight Saving Time
Many experts suggest abandoning Daylight Saving Time due to its negative impacts on health. Living on Standard Time year-round could have health benefits compared to Daylight Saving Time’s schedule changes.
Dr. Murrow and Professor Alice Gregory advocate for a permanent Standard Time to align better with our natural circadian rhythms and improve overall well-being.
About our experts:
Dr. Beth Murrow is a neurology and sleep medicine professor, director of Vanderbilt’s Sleep Division, and advocate for sleep research related to medical conditions and genetics.
Alice Gregory, a psychology professor at Goldsmiths University, has contributed to various areas of sleep research and promotes public engagement with science through her work and publications.
This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.
Strictly Necessary Cookies
Strictly Necessary Cookie should be enabled at all times so that we can save your preferences for cookie settings.
