New Study Reveals Popular ‘Pink Noise’ Could Deteriorate Sleep Quality

A recent study has revealed that while pink noise is popular for promoting better sleep, it may actually disrupt your rest, contradicting common beliefs.

Pink noise, akin to white noise, encompasses all audible frequencies but emphasizes lower frequencies. Various sounds used for brain stimulation are categorized into colors based on how their noise spectrum aligns with the spectrum of colored light. Notably, white noise plays all frequencies at equal intensity, similar to how white light combines all visible colors.

Pink noise resembles the soothing sounds of rain or ocean waves. However, findings suggest mixed effects on memory and sleep benefits.

Conducted at the University of Pennsylvania, a 7-day study evaluated sleep quality among 25 healthy adults, primarily young women, exploring the impacts of environmental noise, pink noise, and earplugs. Participants did not have any sleep disorders or frequently use sound machines.

Participants were instructed to turn off lights at 11 PM and rise at 7 AM.

During the sleeping hours, participants encountered various noise scenarios: no noise, isolated environmental noise, pink noise alone, a blend of pink and environmental noise at different volumes, or environmental noise with earplugs.

Environmental sounds ranged from traffic to sonic booms.

Sleep encompasses phases, including light eye movement, deep sleep, and REM sleep—where dreaming occurs.

Published in the journal Sleep, the study demonstrated that environmental noise notably disrupts stage 3 sleep, leading to an average reduction of 23.4 minutes in this crucial phase, which is essential for cognitive function and memory.

Moreover, pink noise was found to decrease REM sleep duration by 18.6 minutes, a vital phase for mood regulation and mental clarity.

Dr. Matthias Basner, lead author and professor of psychiatry at the University of Pennsylvania, expressed surprise at the significant disruption pink noise caused to sleep.

“While there’s existing literature on REM sleep reduction, it was overlooked until now,” he stated.

The researchers evaluated cognitive and physiological responses before and after each sleep session, alongside monitoring participants’ sleep and inquiring about their mood and fatigue levels.

Although losing 20 minutes of REM sleep may seem minor, Dr. Basner highlighted that these minutes accumulate over time.

“Losing just 10 minutes a night could total 70 minutes over a week, and over a year, that’s a significant 3,640 minutes,” he explained.

The study did not explore ambient noise impacts on infants or children. Dr. Basner cautioned that REM sleep loss may be even more critical in newborns, who spend 50% of their sleep in REM compared to only 25% for adults. He advised against using noise machines for infants and young children.

Adults typically require 7 hours of sleep each night, and each minute of lost REM sleep is significant, according to Basner.

“I won’t dismiss it as trivial; these disruptions can impact wellbeing,” he remarked.

Basner speculated that “constant auditory input” might interfere with the brain’s sleep processes, but the specific reasons why pink noise affects REM sleep remain unclear.

While pink noise aided in falling asleep amidst traffic sounds, earplugs proved more effective in blocking external noise.

The study has limitations; the small sample size of 25 adults was assessed over only seven nights. Over longer durations, participants might adapt to pink noise and revert to normal sleep patterns. Also, the environmental noise included atypical sounds like jet engines, which might also be acclimated to over time.

Noise levels fluctuated nightly, leading to inconsistent sleeping conditions. Even within a controlled lab environment, many participants had never previously slept there, possibly affecting their sleep quality.

Dr. Rafael Pelayo, a clinical professor at Stanford’s sleep medicine division, emphasized that lab study outcomes may not fully reflect typical home environments.

“Though sleep is a biological necessity, sleep habits are learned,” he remarked, suggesting that people can adapt to various sleeping circumstances, similar to managing a snoring partner.

If you find a sound machine beneficial, Dr. Basner recommends using it at a low volume and setting a timer to avoid it running all night.

“I don’t want to undermine its popularity; there may be valid reasons many individuals rely on it,” he concluded.

Source: www.nbcnews.com

This Year, We Found Ourselves Overwhelmed by a Flood of Clever Yet Meaningless AI Noise

OpenAI founder Sam Altman is featured on Sora

Sora/Screenshot

There’s no doubt that 2025 will be remembered as the year of decline. “Slop,” a term for AI-generated content that is often off-base, bizarre, and visually unappealing, has infiltrated nearly every online platform. It is also starting to corrupt our hearts.

Sufficient slop has built up over recent years that scientists can now assess its long-term effects on people. Researchers from the Massachusetts Institute of Technology discovered that individuals using large-scale language models (LLMs) like ChatGPT exhibit significantly less brain activity compared to those who do not. This could adversely affect mental health as reports suggest that specific chatbots may encourage unhealthy beliefs and worsen certain mental health issues.

Furthermore, deepfakes have become ubiquitous, complicating the verification of truth online. A Microsoft study indicates that humans can distinguish between real and AI-generated videos only 62% of the time.

OpenAI’s latest application serves as a video sharing platform that is primarily AI-generated, except for one aspect: the app scans your likeness and integrates you and real individuals into the fictional scenes it creates. OpenAI’s founder Sam Altman has downplayed its significance by allowing users to create videos featuring him stealing GPU and performing skibbiddy toilet-style antics.

Yet, what about AI’s supposedly transformative effects on workplace efficiency? One study reveals that the introduction of AI has resulted in a decline in productivity, with 95% of organizations implementing AI reporting a lack of tangible returns on investment.

Slop devastates lives and careers. It is also eroding our historical narrative. As I work on a book about archaeology, I worry that future historians will look back upon the media from this period and criticize the layers of manipulative and false content. One key reason for recording our experiences, whether through writing or video, is to maintain a historical record of our activities. When I write, I aim to create a legacy that allows those living 5,000 years from now to understand who we were amidst the chaos.

AI chatbots recycle meaningless language. They produce content but not genuine memories. Historically, this may be more harmful than propaganda, which is typically crafted by people with clear intentions, reflecting societal issues and politics. Slop risks erasing our presence from our historical records, making it challenging to discern the intent behind it.

Perhaps the sole way to counteract our current cultural sloppiness is by coining words devoid of meaning. This might explain the emergence of the Gen Z “6-7” phenomenon in the mainstream. This term was designated, albeit nonverbally, as “Word of the Year” by dictionary.com. You can always default to saying 6-7 when lacking a specific response or for no reason at all. What will the future bring? 6-7. What impact will AI slop have on art? 6-7. How do we navigate a reality where jobs are scarce, violence escalates, and climate science is persistently disregarded? 6-7.

I would be intrigued to see AI companies attempt to create content around 6-7. Because humans remain one step ahead of the slop, inventing new forms of nonsense and ambiguity that can only be truly understood by another human.

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Source: www.newscientist.com

How Noise Reduction Technology May Subtly Alter Your Brain Function

Noise-canceling headphones function by utilizing a microphone that detects external sounds. Through sophisticated electronics, these sounds are ‘cancelled’ by playing an inverted wave to the listener, which diminishes the audio signal reaching the eardrum.

This mechanism is akin to how a car’s active suspension mitigates vibrations from uneven roads.

The outcome is that listeners enjoy crystal-clear audio with almost no interference from background noise.

Moreover, these headphones help safeguard your ears from high volume levels. By reducing background noise, your device doesn’t need to produce sound as loudly. Hence, parents globally often encourage their children to wear headphones.










Sounds advantageous, right? But then I began hearing stories about young people facing increasing challenges, such as Auditory Processing Disorder (APD).

These individuals frequently struggle to comprehend sounds and speech amidst distracting background noise.

The underlying causes may be linked to a notable rise in young people using noise-canceling headphones and relying on subtitles while watching videos.

Instead of their brains developing typically and learning to filter the noisy environment, they wear noise-canceling headphones for extended periods, regardless of their location, thereby not allowing their brains to adapt properly.

Our brains function like muscles; they evolve in response to external stimuli.

Just as biking 100 miles a day will sculpt your thighs, your auditory processing skills may weaken if you expose yourself solely to pure audio without any background noise, leaving you unable to process multiple sounds simultaneously.

Auditory therapy can be beneficial in retraining the brain, but the optimal approach is to engage more with the world around you before complications develop. Over-isolating ourselves may lead to greater issues.


This article addresses the question (submitted by Mary Watkins): “Can noise-canceling headphones harm your ears?”

If you have any inquiries, please contact us at: questions@sciencefocus.com or send us a message Facebook, Twitter, or Instagram Page (don’t forget to include your name and location).

Explore our ultimate fun facts and more fascinating science pages!


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Source: www.sciencefocus.com

AirPods Pro 3 Review: Enhanced Battery, Superior Noise Cancellation, and Improved Sound Quality | Apple

Apple’s highly acclaimed AirPods Pro Bluetooth earphones have returned in their third generation, featuring an improved fit, extended battery life, built-in heart rate sensors, and enhanced noise cancellation, all while maintaining a look similar to their predecessors.


Although three years have elapsed since the previous version, these earphones remain exclusively white. The differences between them and earlier generations are subtle and require close inspection.

Priced at £219 (249 Euros/$249/$429), the AirPods Pro 3 is £30 less expensive in the UK than its predecessor at launch and features compatibility with AirPods 4.

The earphones have undergone slight shape refinements to enhance comfort, especially during prolonged listening sessions exceeding three hours. The package includes five sizes of tips, but if you prefer non-silicone earphones, these won’t offer much difference.




The stems maintain their previous length, but the earphones’ shape has been optimized to better align the tips with the ear canal. Photo: Samuel Gibbs/The Guardian

Most functions are standard for modern earphones. Squeeze the stems for playback controls, swipe for volume adjustment, or remove them to pause music. They support features introduced with older Apple earphones, like the Shutter Remote Camera app and live translation using the translation app on your iPhone. The latter currently supports only English, French, German, Portuguese, and Spanish but works surprisingly well for casual conversations.

A notable drawback is that others still need to read translated speeches from their iPhones. This feature proves most useful for announcements and audio guides, especially for singular language translations in transportation hubs and museums.

One of the standout hardware features is heart rate monitoring through the sensors on the earbuds, similar to Apple’s PowerBeats Pro 2 fitness band. This can be utilized with over 50 workout tracking options via the Fitness app or select third-party apps on your iPhone. Its readings align closely with those from a Garmin Forerunner 970 or an Apple Watch during activities like walking and running. Additionally, the earphones boast an IP57 water resistance rating, making them more resilient to rain and sweat than previous models.

Battery life has improved, extending to at least 8 hours of playback, along with competitive noise cancellation on every charge, making them suitable for most listening durations.




The compact flip-top case provides two full charges for a combined playback time of 24 hours (6 hours shorter than the previous generation), with just 5 minutes of charging offering an hour of listening time. Photo: Samuel Gibbs/The Guardian

Specifications

  • Connectivity: Bluetooth 5.3, SBC, AAC, H2 chip, UWB

  • Battery life: 8 hours of ANC playback (24 hours in case)

  • Water resistance: IP57 (buds and case)

  • Earphone dimensions: 30.9 x 19.2 x 27.0mm

  • Earphone weight: 5.6g each

  • Charging case dimensions: 47.2 x 62.2 x 21.8mm

  • Charging case weight: 44g

  • Case charging: USB-C, QI Wireless/Magsafe, Apple Watch

Richer Sound and Exceptional Noise Cancellation




The silicone tips are designed to slightly expand for a better seal, enhancing both music quality and noise cancellation. Photo: Samuel Gibbs/The Guardian

The audio experience with the third-generation AirPods Pro is impressive, offering louder playback with an expansive soundscape. They maintain powerful, well-regulated bass while enhancing the spaciousness of larger tracks. The sound is detailed and balanced, catering to various genres, with ample power when needed. However, like other Apple headphones, they can occasionally feel a tad clinical, lacking warmth and rawness in some tracks, which may lessen the impact of deep bass notes. Nevertheless, few earphones can outshine these in terms of price and size.

Apple’s implementation of spatial audio for movies is unrivaled, and while its efficacy in spatial music remains mixed, it provides an immersive experience with compatible devices and services.




The AirPods Pro offers the ideal blend of earphones and compact carrier, easily portable in your pocket. Photo: Samuel Gibbs/The Guardian

Enhanced noise cancellation is arguably the most significant upgrade. Apple claims it’s twice as effective as the already excellent AirPods Pro 2. In direct comparisons, the AirPods Pro 3 effectively mitigates street noise, including traffic sounds and engine roars. It stands up impressively against the class-leading Sony WH-1000XM6, renowned for their over-ear design.

They also excel in dampening disruptive high frequencies, such as keyboard clicks and conversations, making them well-suited for commuting and office environments.

Apple’s leading transparency mode is equally outstanding, allowing for natural sound experiences, as if the earbuds aren’t being worn at all. Sudden loud noises can be managed, making them handy in busy streets and while using hearing aids.

Call quality is superb, with my voice sounding clear and natural, whether in quiet settings or bustling environments, with only minimal ambient sounds noticeable during calls.

Sustainability




The charging case supports USB-C, Magsafe, QI, or Apple Watch charging, and includes new features like Limit Charging to prolong battery life. Photo: Samuel Gibbs/The Guardian

Apple does not specify the expected battery lifespan. Typically, similar devices retain at least 80% of their original capacity after 500 full charge cycles. The earphones are not repairable, but Apple provides battery servicing for £49 per earphone or case, with replacement for lost or damaged items starting from £79. Repair specialist iFixit graded these earphones a 0 out of 10 for serviceability.

Both the AirPods and their cases include 40% recycled materials, including aluminum, cobalt, copper, gold, lithium, plastic, rare earth elements, and tin. Apple offers trade-in and recycling programs, detailing the environmental impact of its earphones in their reports.

Price

The price for the AirPods Pro 3 is £219 (249 Euros/$249/$429).

For context, AirPods 4 starts at £119, while Beats PowerBeats Pro 2 are priced at £250. The Sennheiser Momentum TW4 retails for £199, Google Pixel Buds Pro 2 cost £219, Sony WF-1000XM5 is available for £219, and the Bose QuietComfort Ultra Earbuds are priced at £300.

Verdict

AirPods Pro 3 takes an already impressive second-generation model and enhances virtually every aspect.

A longer battery life and a more comfortable fit for extended listening sessions are welcome improvements. Additionally, proper water resistance and integrated heart rate monitoring cater well to fitness enthusiasts, particularly for activities like powerlifting where wearing a watch may not be practical. The live translation feature performs better than anticipated, despite its conversational limitations.

The standout element is the remarkably effective noise cancellation, comparable to top-tier over-ear headphones, while being much easier to transport.

Audiophiles may notice a slightly clinical sound profile, and full functionality requires an iPhone, iPad, or Mac. Compatibility with Bluetooth devices like Android phones, PCs, and gaming consoles may not offer the same features. However, the significant drawback remains its difficult repairability, a common issue for true wireless earbuds, diminishing its rating.

Pros: Highly effective noise cancellation, excellent sound quality, industry-leading transparency, water resistance, integrated HR monitoring, seamless controls, advanced features when paired with Apple devices like spatial audio, remarkable comfort, and a premium case with excellent call quality.

Cons: Challenging to repair, premium price, lacks high-resolution audio support, minimal functionality with Android/Windows, similar appearance to its predecessor, and only available in white.




The AirPods Pro 3 is among the finest earphones available, especially for iPhone users. Photo: Samuel Gibbs/The Guardian

Source: www.theguardian.com

Stealth Radio Conceals Signals in Ambient Noise to Safeguard Drone Operators

Drones are now crucial in the Russia-Ukraine conflict

Diego Herrera Charcedo/Anadolu via Getty Images

Stealth military radios, designed to mask signals from ambient noise, are exceptionally resistant to jamming and detection. This capability allows drone operators to function without being exposed.

With drones rapidly gaining prominence in warfare, electronic warfare has taken on a new intensity. In the ongoing conflict between Russia and Ukraine, both factions deploy jammers to disrupt drone communications, while also capturing radio signals to identify drone operators for coordinating artillery assaults.

We are a startup named Rampart News, and we’ve created a radio that features dual layers of protection, making it extremely hard to detect signals. The Stratawave Radio disperses its signal across a wide spectrum rather than encrypting it and broadcasting on a single frequency, rendering emissions subdued and harder to identify.

While similar methods have been employed in the past, Stratawave enhances this approach. By distributing the signal over the radio spectrum, interception becomes challenging, but the mere existence of radio transmissions remains apparent. To obscure this, Stratawave combines the entire broadcast, masking the presence of the radio signal amid ambient noise.

The first layer of protection resembles encoding a letter and then tearing it into substantial pieces. Even if adversaries can’t decipher the message, they can still perceive its existence. The second layer, however, is akin to reducing the letters to dust.

“Without the correct encryption key and algorithm, the signal manifests as noise on alternative receivers,” explains Aaron Correa from Rampart.

The company introduced Stratawave at the Pentagon Technical Preparation Experiment (TREX) event held in Camp Atterbury, Indiana, in August. During the event, the operator piloted the drone directly above the jamming system without encountering any disruptions.

The device manufacturer claims it has undergone over 60 diverse jamming trials. The counter-drone systems were unable to detect emissions from either the drone or its operator, nor could they triangulate their location.

Theoretically, StrataWave enables drone operators to use higher power levels without drawing fire, facilitating safer communication over long distances. Ukrainian commander from the Typhoon Drone Unit, Michael, asserts that they typically keep their power output as low as possible to evade detection.

“As soon as you activate a transmitter with a standard output of 1-5 watts, you increase both the signal strength and your exposure,” Michael states. “More potent, distinctive signals are easier to detect and pinpoint through triangulation.”

Electronic warfare resembles a cat-and-mouse dynamic, with advancements constantly evolving to counteract one another. In Ukraine, drone technologies are refreshed every few weeks to surpass existing jamming methods. Rampart asserts that when adversaries attempt to detect or jam Stratawave, they effectively start from scratch.

Thomas Withington, an electronic warfare specialist at the Royal United Services Institute (RUSI), a British defense think tank, suggests that this is not the definitive turn in the radio and jamming conflict. “Radio frequency engineers inform us that new systems seldom perform flawlessly.”

Withington highlights that cognitive radio systems incorporating AI and extensive datasets increasingly stand to uncover hidden signals cloaked in noise. However, deciphering Stratawave may take time. “This type of system undoubtedly offers a temporary advantage, which could be all you require,” he concludes.

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Source: www.newscientist.com

Clomal Review: A Groundbreaking Book Examines the Global Impact of Noise

Noise-Canceling Headphones as a Solution to Unwanted Sound

pjrtransport/alamy

shout
Chris Berdik (WW Norton)

Noise is a constant presence, easily overlooked until its intensity shifts significantly. We recognize familiar sounds—the heartbeats and hums of daily life—just as readily as we notice the sights seen during commutes and other outings.

When those familiar sounds change, we pay attention. Many express a desire for quietude, yet Chris Berdik, a science journalist, posits that this intricately overlaps with positive noise. He argues in his book, Cry: Noise Took Over the World – And How Can It Be Regained?, that sometimes we need to introduce pleasant sounds to mask the more intrusive ones.

While noise-cancelling headphones sell well, Berdik emphasizes that they are not a universal fix. Introducing white or grey noise can mitigate harmful sounds, yet complete silencing can often have detrimental effects.

It is crucial to cultivate the right kind of noise, as it directly impacts our health. For instance, my neighbor’s piano while I read Berdik’s work doesn’t elevate my stress levels as much as the sounds of children playing soccer against my living room walls. The immediate effects are concerning, but the long-term implications offer even greater cause for reflection.

Nearly 40 million adults in the US experience noise-induced hearing loss, with projections estimating this figure could nearly double by 2060. This is a universal challenge, as the World Health Organization indicates that over 1 billion young individuals globally face an avoidable risk of hearing impairment due to their use of devices such as smartphones and audio players. Remarkably, one in four respondents suggest that by 2050, they will be putting their hearing at risk.

I read this book amidst rising discussions about noise management. Recently, in the UK, proposed legislation suggested allowing loud music on public transport without headphones—a surprisingly popular thought.

Yet, a contrasting perspective emerged during my recent days spent in the hospital listening to the beeping machines connected to my grandfather. As time passed, those sounds became familiar, aligning with Berdik’s observation about how our brains adapt.

This prevailing issue touches on another compelling narrative Berdik shares in shout: a healthcare professional working on redesigning medical machines to ensure critical signals aren’t drowned out by unnecessary noise. Her innovations include auditory icons—concise sound cues conveying essential information, like the sound of breathing.

The ramifications of noise reach beyond human experiences. Berdik points out that from 1950 to 2007, ambient noise levels in the deep sea rose by 3.3 decibels per decade.

This increase has tangible effects on sea life; for instance, the sounds created by ocean vessels interfere with the communication frequencies of whales.

Change is essential, Berdik insists. This means reducing loud music on public transport—a notion that some, like the liberal Democrats, seem to champion. Furthermore, it calls for a reevaluation of our reliance on noise-cancelling headphones and a thoughtful assessment of the noise we wish to retain versus the noise we seek to eliminate.

Chris Stokell Walker is a technology writer based in Newcastle, UK

The Art and Science of Crafting Science Fiction

Explore new dimensions in science fiction writing this weekend, focusing on world-building and artistic expression.

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Source: www.newscientist.com

Tuning Out Digital Noise: The True Sound of Democracy in Crisis | Raphael Bear

rDuring my holiday, I would emerge and introduce myself as “offline.” A more precise answer would be France, where internet access is indeed available. However, I intentionally limited my usage. Constantly checking your phone undermines the entire purpose of escaping.

In the last decade, the idea of a vacation has shifted to signify a break from the digital world rather than simply leaving home. The respite begins with logging off, rather than with boarding a flight; decluttering work emails, archiving professional WhatsApp chats, and removing social media apps signify that transition.

Gains don’t manifest immediately. The dissonance may echo in your mind for days before you finally sense a deeper peace, marking a shift in rhythm. It’s a stark contrast between navigating the internal currents of your thoughts and the relentless rush driven by societal demands. The difference grows sharper, and upon returning to work, you find yourself inundated with notifications and alerts.

I’m not advocating for the analog past. You won’t find me lost without Google Maps. I don’t believe that society was better off when the clergy held absolute authority or when people were more susceptible to superstitions.

We are now entering the third decade of the first digital century. The revolution is irreversible, and we tread into uncharted territory. History has seen explosive advancements in connectivity due to significant innovations in communication technology, but only a few have been truly transformative. Naomi Alderman refers to these shifts as an “Information crisis,” claiming we are experiencing the third iteration, with the printing press representing the second.

While comparisons may not be exact, the scale of our current experiences is immense and immeasurable. We have little understanding of just how far we have traveled down this digital path. AI is only in its infancy.

Readers of the Gutenberg Bible in the late 15th century had no means of predicting how movable type would revolutionize social, cultural, economic, and political frameworks in Europe. Are we better prepared to envision the world another century of digital transformation will bring?

My brief two-week hiatus from technology didn’t yield significant insights, but it highlighted that these ongoing transformations are profoundly cognitive. When you step away from the constant stream of information or dial it back, you come to appreciate the chaos of the rest of the time.

Our brains have evolved to interpret a relatively small dataset from our immediate environments, tracking predators and figuring out survival strategies. We are organic processors. Yet, the capacity for rational judgment can be constrained by how quickly sensory signals can be transformed into coherent mental models, determining our subsequent actions.


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


While we possess remarkable abilities, they often falter under conditions of sensory overload. This doesn’t negate our capacity to process the profound shifts we’ve undergone or our ability to perceive the world at a rapid pace. Just as we adapted to urban life after centuries of rural existence, we can adjust to the influx of stimuli. However, these swift changes can be turbulent, stressful, and often violent. This information crisis induces a cosmological shift, altering how humanity organizes and views itself. Hierarchies crumble, societal norms are rewritten, and morality is reevaluated. A new philosophy is emerging; traditional beliefs are being discarded.

It’s no wonder that democratic systems struggle to adjust in this upheaval. A lone Congress on a small island in the North Atlantic is moving to impose new global tech regulations.

During my brief internet hiatus last month, key provisions of the Online Safety Act came into effect. Social media platforms and search engines are now required to restrict access to content deemed harmful by new legislation for minors (including content promoting abuse, pornography, self-harm, terrorism, and suicide).

Tech companies are lobbying vigorously for change. Donald Trump’s administration views it as an infringement on free speech. Nigel Farage concurs, threatening to repeal the law if he comes to power. The Labor Minister has accused the reform leader of siding with the interests of pedophiles.

As a compliant adult user, it’s difficult to ascertain whether these new restrictions will achieve their intended objectives. The aging process is no more concerning than the daily personal data submissions we make in exchange for a seamless digital experience.

Reports suggest that non-pornographic news and public health sites have been inadvertently blocked. Critics argue that these protections can be easily circumvented with minimal digital savvy. It appears that an overzealous approach by tech companies or a lack of risk management is leading to inconsistent filtering. However, the implications for political freedom – the potential hindrance to free speech that some equate with extreme censorship – seem negligible.


Indeed, the framework for monitoring information involves the potential for a more oppressive agenda. Future administrations could redefine what constitutes “harmful” content, which could include government criticism or anything undermining traditional family values. Advocates of the new legislation should be wary of its potential misuse.

Yet, some of its most ardent opponents, particularly those aligned with Trump, are hardly trustworthy defenders of political freedom. Their motives stem not from a genuine concern for free speech but from the commercial interests of entities overseeing much of our digital information landscape. The system is riddled with toxicity, with those profiting from the chaos refusing accountability, resisting regulation for the same reasons encountered by polluters since the Industrial Revolution: simply because they can. It’s more profitable when they don’t have to clean up their own mess.

Online safety regulations may have flaws, yet they might also be necessary. Currently, it’s a minor skirmish in a broader battle that will determine how power dynamics shift in the wake of the ongoing information crisis. It sends a subtle but vital message: a cry for help from politicians struggling amidst digital chaos.

Source: www.theguardian.com

Why Food Noise, Not Willpower, Holds the Secret to Weight Loss

Among the countless enigmas of science, I find myself intrigued by the enticing toffee tucked away in the kitchen cupboard. It has me completely captivated—almost like I’m being swept into some metaphysical currents.

The pressing question is: how? How do chocolate bars diminish my willpower when I thought I was a seasoned adult who should know better?

The solution may be linked to the concept of “food noise.” This pervasive and disruptive phenomenon relates to the relationship between food and our perceptions of it.

In the case of my beloved toffee crunch, these fleeting thoughts are mere distractions that I inevitably give in to within an hour.

Food noise can be a serious issue

For some individuals, food noise is a substantial concern. Hayashi Daimon, a doctoral researcher at Penn State University, explains.

He notes that when the volume increases, food noise becomes a source of “a constant obsession that undermines an individual’s well-being and complicates healthy choices.”

Although research on food noise is sparse, in 2023, Hayashi and his colleagues published a paper aiming to connect established knowledge about food cues and anecdotal insights into food noise. Their team is actively pursuing further research.

“I believe that research on food noise is at a point where asking the right questions and seeking empirical data is more crucial than making presumptions,” Yayashi highlights.

“From our preliminary findings, I can tell you that most social media accounts describe food noise as a source of distress, with people indicating they would rather avoid it.”

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Individuals respond variably to food cues

Hayashi asserts that food noise is characterized by an ongoing, heightened reaction to food signals—ranging from social media advertisements to the aroma of someone’s dish, and the internal mechanisms that regulate appetite hormones.

While these cues serve to nourish us, some individuals exhibit quicker responses.

“A combination of personal attributes such as genetics, lifestyle, and stress can lead to heightened sensitivity to food noise, particularly as we are frequently subjected to strong external food signals.”

An intriguing study has emerged from research on GLP-1 agonists, a category of weight loss medications including Ozempic.

“Anécdotal evidence suggests that many individuals use the term ‘food noise’ to describe obsessive behaviors regarding food prior to starting such treatments,” says Hayashi.

“My hypothesis is that one of the impacts of these medications, which might clarify their efficacy in obesity treatment, is that they diminish the responsiveness to food cues and lessen susceptibility to food noise.”

Further research will address this inquiry and determine the extent of food noise’s impact on others.

Certain foods are rich in brain dopamine reactions termed “Bliss Points,” particularly those high in sugar, fat, and salt, like chocolate digestives – Credit: Peter Dazelly via Getty

What actions can we take regarding food noise now?

If you’re searching for approaches to manage intrusive thoughts about food (or intense cravings for forbidden toffee), Hayashi suggests consulting a nutritionist. They can assist in examining your dietary habits and devising strategies to enhance resistance to food cues.

These strategies may encompass mindful eating practices or ensuring sufficient meal consumption to avoid the discomfort of hunger at mealtimes.

Crucially, avoid falling into the trap of guilt surrounding the notion that struggling with food represents personal failure.

“We exist in a paradoxical society where cultural messages incessantly promote thinness and muscularity, while simultaneously compelling us to engage with external food cues that lead to poor dietary choices,” he explains.

“This creates an ideal scenario for suffering from food noise, compounded by a social structure that makes access to healthier options more challenging than opting for convenient, highly processed foods lacking in nutritional value.”

About our experts

Hayashi Daimon is a doctoral researcher at Penn State University in the United States. His work has been featured in Nutrients, Journal of Human Nutrition and Dietetics, and Surgery for Obesity and Related Diseases.

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Source: www.sciencefocus.com

Everyone in the city must have a noise canceling device or perhaps even a pet spider.

When you’re about to have a nice meal, nothing worse than a noisy neighbor. Even if the meal is made up before it liquefies the inside of the prey.

New research shows that some spiders living in cities somehow weave soundproofing designs into the web structure to manage unnecessary noise.

“The University of Nebraska Lincoln” has announced that Irene Hebetz, author of the paper led by University of Nebraska-Lincoln biologist and university postdoctoral researcher Brandi Pessman.

Funnel web spiders are becoming more common in North America. These quarter-sized spiders, with their legs stretched, attach nets to everything, whether they are rocks, grass or human objects. They weave a kind of funnel into a web that usually hides from predators. Their silk is not sticky, so they rely on speed and ambush. After detecting prey into their nets, they burst and attacked, injected the victim with venom, then liquefying the inside for easy digestion.

Spiders don’t have human ears, so they don’t necessarily listen to things in the traditional way. However, sound produces vibrations that travel through the ground into the net through the chains of silk.

“They really rely on those exact vibrations to determine where their prey is, what their prey is, and whether they’re going to attack,” Dr. Pessman said.

“The sense of vibration tends to be forgotten in nature,” added Beth Mortimer, a biologist who studied noise pollution and was not involved in the study at Oxford University. This species builds both urban and rural nets at home. And Dr. Pessman began to wonder whether noise pollution might plague spiders enough to change their web weaving strategies.

in study Presented in the Journal Current Biology last week, Dr. Pessman and Dr. Hebets rounded up Arachnid City Slickers and Country Bumbkins and took them to the lab. They placed each spider in a container with the speakers on the bottom and played loud or quiet white noise for four days.

The researchers then analyzed the webs constructed by each spider by transmitting measured vibrations at different points.

Dr. Hebbets and Dr. Pessmann could not find any major differences in the way urban spiders and farm spiders communicate vibrations when they play quiet noises.

When they played loud noises on urban spiders, they discovered that their web was less sensitive and less vibrations to the funnel. “Their web was inherently quiet,” Dr. Pessman said. Researchers didn’t know how the web differed structurally, but Dr. Pessman said it was clear that “it reduces the constant noise approaching where they sit.”

Conversely, when the country’s spiders heard a loud noise, they created a more sensitive web. Researchers speculated that they were not used to such rackets and were desperately trying to feel the incoming prey. It’s like turning up a TV as the lawnmower passes by the window.

Meanwhile, city spiders essentially filled the wall because everything was boring. This is an adaptation that puts you at a disadvantage to hear your prey and potential companions, using vibrations to communicate availability. But it may help animals save their energy and not respond to all the city sounds they detect.

“If you have masking noise, that means you’re less likely to detect small items coming into your web,” said Dr. Mortimer, who said the study “doesn’t really well.”

The study highlights the refinement of spiders, Hebbets said, because despite the problems with big cities, he came up with solutions to find food and companions.

“Animal sensory systems can certainly adapt to changes in environmental conditions over time, but this takes time,” Dr. Hebbets said. “However, behavioral changes can be immediate.”

Source: www.nytimes.com

Embracing the Noise: How I Unplugged and Reconnected with the World

you Up until about a month ago, the thought of leaving my apartment without headphones plugged into my phone filled me with anxiety. Whether it was a two-minute walk to the store or a two-hour commute where I could hear nothing but my own thoughts and the hustle and bustle of the city, it was enough to send me into a mild state of frenzy.

This obsessive relationship with headphones began earlier this year when a friend of mine, an ambient artist, Lance Laoyen noted that headphones not only disconnect us from the reality of noise pollution, but also continue to distract us under the guise of improving our focus. This conversation sent me into a bit of a spiral of thought that I am prone to fall into, and made me keenly aware of the ubiquity of headphones in our culture and how little attention we pay to them.

In Manchester where I live, it would be hard to find someone in the city centre do not have We wear headphones. Cyclists, commuters, runners, everyone. According to a Statista survey, 30 million people will be using headphones in 2022, the majority of which will be in-ear Bluetooth headphones such as Apple AirPods. By 2027, half of us are predicted to own headphones, the majority of whom will be between the ages of 25 and 45. Many of us choose to listen to something other than the outside world while on the go, whether it’s music, podcasts, or audiobooks, but increasingly I’m beginning to question why.

So in April, I gave up headphones for a month to become more mindful of my relationship with my surroundings, which was addictive to say the least. They were inextricably linked to my daily routine: taking out the trash, exercising, doing the dishes, writing, lunching, sleeping. The only time I ever lived without them was when the battery died. And never, ever, ever, by choice. The anxiety I felt until I was able to charge them should have been enough to at least tell me I was addicted.




Illustration: Luke McConkey/Observer

Of course, it wasn’t always this way. In 1979, Sony launched the revolutionary Walkman, the world’s first personal listening device. It came with lightweight headphones, and it seemed like a miracle that suddenly music could be carried around with you. You could walk around surrounded by your own soundscape. In this sense, headphones have been very different for each generation, becoming more appealing and addictive with each successive generation. Gen X had the Walkman, while millennials loved MP3 players and iPods, digitizing the personal listening experience and making it even easier to listen to anything, anywhere, anytime. Gen Z, my generation, has grown accustomed to smartphones and streaming services. The desire to listen to something other than the outside world has never been stronger.

The invention of the Walkman didn’t just change the way humans listen to music, it changed the way we interact with our surroundings, with others, and with ourselves. It was a revolutionary change, and the use of headphones Accelerates the progression of hearing loss And more Causes an increase in traffic accidents No one seems to question it because people are distracted.

Someone has been closely studying the collective use of headphones. Michael Bull Bull, a professor of acoustics at the University of Sussex, was one of the first sociological studies of headphone adoption. He believes our addiction to headphones can be explained by a very human motivation: the need for control. This can be broken down into four dimensions. The first is cognitive, which has to do with our ability to control our mood; the second is environmental, which has to do with our power to block out unpleasant noises. Then there’s the physical dimension, which can mean anything from feeling more confident when walking through a crowd of strangers to being able to concentrate without being interrupted by unexpected noises. And finally, there’s social control: headphones allow us to block out everyone unless we choose to let them in.

But Bull points out that this control is a double-edged sword. Headphone users often say they’re free, but he says, “for that to be true, they’re dependent on machines. They’re bound by the economic dynamics of the world and the media they use. It’s a huge paradox: you’re manipulated, but that manipulation creates a sense of freedom.” This resonates with me. I try to be mindful of my relationship to things that seem to permeate our culture but aren’t actually necessary. For example, we feel we “need” smartphones and social media accounts just because they’re ubiquitous, but research consistently suggests that these things are not good for us in the long run. Are headphones different?

This paradox is best exemplified by my desire to control both my cognition and my environment. The two go hand in hand. Living in a city often leaves me disoriented. I witness so much horror that I have no choice but to look away. I walk through Manchester listening to Northern Soul, light on my feet, passing homeless people, completely immersed in my audiotopia. In a way, it seems necessary. It’s painful to see so much sadness every day and not be able to immediately help. So I understand the need to feel in control of my experience, the sense of freedom that comes from blocking it all out. The same can be said about blocking out the noise of industrialization. I understand the argument that headphones can be used as a tool for personal liberation, something Bull found in his research. But true liberation is when the outside world becomes more suited to our needs (and the needs of the natural world, of course).

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But you can’t change what you don’t notice. This is what Laoyan told me in a conversation that preceded my experiment. I had never thought before about how our frequent use of headphones and unwillingness to hear the outside world cut us off from reality. He approaches the issue from an environmental perspective. An artist and researcher interested in the impact of noise pollution on the natural environment, he says, “For me, understanding noise pollution is a way of processing the kind of environment we have created and are creating and how it affects us ecologically. These unwanted sounds cause a surge in stress hormones in us and animals, which can be destructive if exposed for long periods of time.” He explains that in places with high levels of noise pollution, there is a high risk of mental and physical breakdown. To ignore it is simply to accept it, but change requires criticism, and to criticize, you need to listen.

Refuses to wear headphones It’s not just about acknowledging the ugliness of the world, but experiencing its beauty. When we block out the city noises that we consider negative, we also block out the noises of the natural world. On the way to the gym, as we walk through a tree-lined street, we hear the birds singing. They are not drowned out by traffic, and we can hear them if we listen carefully. It’s so lovely to hear the whole city. Using headphones, and especially listening to music, is a way to “beautify our experience,” making things more beautiful and enjoyable, explains Bull. But there is joy in the real world, too. It’s great to have. Beauty is all around us, and we just need to notice it.

It’s no secret that the practice of gratitude has many benefits for mental health. Being grateful for what exists outside of your possessions, being grateful for what you have even when you feel like you have nothing, is an infinitely positive thing. So what might be truly liberating is to accept things as they are, and know that while a lot of things are bad, there’s also a lot of good stuff. This is what Laoyan calls “taking back control of your ears,” which he encourages. “There’s something empowering about being able to experience the places we live in through our natural sense of touch and feeling,” he says. “Even if new technologies can enhance or extend the human body, there’s no escaping the fact that we’re intricately intertwined with the world.”

All of this may seem a bit philosophical, and may require a shift in perspective beyond simply leaving your headphones at home, but I noticed tangible benefits in my everyday life. During our email correspondence about the experiment, Laoyan asked me if I’d noticed an increase in my “natural energy.” I’d never thought of it that way, but he was right: everyday chores like washing dishes and hanging out laundry that were previously numbingly boring became relaxing, if not enjoyable.

As a neuropsychologist Dr. Amber Johnston Music stimulates dopamine and the brain’s reward center, she explains. We live in a dopamine-filled society, and many of our favorite technologies contribute to this. If we use music to release dopamine during “boring” tasks, it becomes harder to tolerate boredom. “People who can’t tolerate feeling bored seek out dopamine to relieve discomfort, and music and headphones may be a way to achieve that,” she says. “So actually, if you practice not seeking dopamine and spending time in a state where you feel comfortable with boredom instead, it gradually reduces the amount of additional stimulation you need to get the same dopamine release.”




“If I hadn’t known the impact headphones have on society, I would have only had to look at the confused looks on my friends and acquaintances’ faces when I told them I was planning to abstain from headphones.” Photo: Juan Algar/Getty Images

If I didn’t already know about the social impact of headphones, the bewildered looks on my friends and acquaintances’ faces when I told them I was going to stop using them speak volumes. Most of them lamented the fear of being forced to listen to what other people are saying. And I understand. There is power in being able to easily ignore people, especially when it comes to undesirable behavior like catcalling. But it also closes us off from real interaction. study A survey by audio company Jabra found that UK headphone users wear them for an average of 58 minutes a day, and 38% do so to actively avoid talking to others, leading some researchers to worry that this could be contributing to a culture of isolation and a growing sense of loneliness.

I didn’t immediately start talking to strangers on the street the moment I stopped wearing my headphones, but I did hear more human conversations and felt more connected. But most importantly, I was able to give more of my attention to my loved ones when I was on the phone. I would often use my headphones to multitask while talking to people on the phone – making dinner and navigating on Google Maps. Since I stopped doing this, I’ve noticed that when I talk to friends and family, I can give them my full attention.

Still, I’m not actively against headphones. They can increase focus and productivity, and can be invaluable for people with sensory processing issues. But when I decided not to wear them, something magical happened. I began to calm down. Thoughts didn’t disappear, but they didn’t feel so heavy. They passed me by like cars on the highway. I learned to be present and appreciate the world as it is.

A month after the experiment ended, I still wear headphones from time to time, but they don’t have as much control over me as they

Source: www.theguardian.com

New research on Zinc sheds light on the link between loud noise and hearing loss

Exposure to loud noises, such as at music festivals, can worsen your hearing

Sergei Ilnitsky/EPA-EFE/Shutterstock

Exposure to loud noises can disrupt zinc levels in the inner ear, potentially affecting hearing, a study in mice suggests. Treatments that reduce this could be used to treat or prevent such damage, for example, if taken before a rock concert.

Loud noises can cause cells in the inner ear die. Although it has long been known that this affects hearing, the mechanisms behind it are less clear.

Thanos Tsonopoulos Researchers at the University of Pittsburgh, Pennsylvania, thought it might have something to do with free-moving zinc, which plays an important role in the neurotransmission of our senses.

Most of the zinc in the body is bound to proteins, but the rest acts as communication signals between organs, especially the brain, Tsonopoulos says. The highest concentration of free zinc in the body is in the cochlea, the snail-shaped structure in the inner ear that converts vibrations into electrical signals, which are then interpreted as sound.

To learn more, Tzounopoulos and colleagues tested free zinc levels in young mice that had been genetically engineered to produce biological markers that indicate the transport of free zinc throughout the body.

Tsonopoulos said mice exposed to 100 decibels of noise, about the same level as a bulldozer or motorcycle, for two hours straight developed significant hearing loss within the next 24 hours.

The researchers found that these mice had higher amounts of free zinc between and around the cells of the cochlea after the blast compared to before the blast and compared to a group of control mice that did not hear the loud noise. I discovered that

“There is a very strong upregulation of zinc, not only in terms of quantity but also in terms of regional spatial extent,” he says. “It goes everywhere.”

Tsonopoulos said the zinc appears to be released from specific cells in the cochlea after it is separated from the proteins to which it is normally bound. Free zinc ultimately causes cell damage and disrupts normal communication between cells, he says.

To see if lowering free zinc levels could protect hearing, Tsonopoulos and his team injected another group of mice with a compound that scavenged zinc into their abdomens or administered a slow-release drug into the inner ear. It was treated by placing an implant. The mice then listened to the same loud sound for two hours. Both groups experienced significant reductions in hearing loss.

With further research, zinc-capturing tablets, IV drugs, or slow-release implants could one day help prevent or treat inner ear damage caused by noise trauma, Tsonopoulos says.

“You can go to concerts, you can go to battle, you can take drugs,” he says. “Or, if you have an accident, you might have these compounds in your ER. [emergency room] We will give it to you to reduce the damage. ”

Future research should also determine how long after exposure to noise people can benefit from such zinc trap therapy, team members say. Amantha Satyaalso at the University of Pittsburgh.

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Source: www.newscientist.com

The Relationship Between Seismology and Climate Change Noise

Since the 1980s, seismic observatories have detected increases in the strength of ocean waves that correlate with climate change. A Colorado State University study analyzed more than 35 years of data and found that ocean waves are becoming significantly stronger, reflecting the increased intensity of storms due to global warming. This seismic data reveals long-term trends and changes in wave energy and highlights the need for resilient strategies to protect coastal regions from the effects of climate change.

Since the late 1980s, modern digital seismic observatories have been monitoring Earth’s vibrations around the world. Previously thought by seismologists to be just a background disturbance, the persistent low hum produced by ocean waves has become stronger since the late 20th century, according to a study led by Colorado State University.

This research nature communicationsexamines data from 52 seismic stations that recorded the Earth’s movement once a second over 35 years. This decades-long record supports independent climate and ocean research that suggests storms are becoming more intense as the climate warms.

“Seismology can provide stable, quantitative measurements of what is happening to waves in the world’s oceans, complementing research using satellites, oceanography, and other methods.” said author Rick Astor, professor of geophysics and chair of Earth Sciences at CSU. “The seismic signal is consistent with these other studies and shows the types of features expected from anthropogenic climate change.”

Astor and his collaborators at the U.S. Geological Survey and Harvard University studied first-order microseisms, the seismic signals produced by large, long-period waves that cross shallow regions of the world’s oceans. The ocean floor in coastal areas is constantly being pushed and pulled by these waves, and these pressure changes generate seismic waves that are picked up by seismometers.

Seismic station locations and global trends since the late 1980s: (a) Ground vertical acceleration amplitude in billionths of a meter, (b) Acceleration amplitude normalized to the historical median, and ( c) Normalized by the historical median of seismic energy.Credit: Rick Astor

Seismometers are best known for monitoring and studying earthquakes, but they also detect many other things, including the movement of glaciers, landslides, volcanic eruptions, large meteorites, and noise from cities. Seismic waves from various forces on or within the Earth’s surface can be seen at great distances, sometimes even on the other side of the Earth.

“As the atmosphere and ocean warm, storms become more intense because they contain more energy, and the ocean waves they cause increase in size and energy,” Aster said. “Increasing the energy of ocean waves directly increases the strength of seismic waves.”

make (bigger) waves

Seismic signals show that the Southern Ocean waves of the infamous storm around Antarctica are predictably the most intense on Earth, while the waves in the North Atlantic are the most rapidly intensifying in recent decades, with waves in eastern North America and western Europe It reflects the storm that rages between.

In addition to the steady rise in wave energy that reflects widespread increases in global ocean and air temperatures, the data also show multi-year climate patterns such as El Niño and La Niña that influence the strength and distribution of global storms. Masu. And an even bigger storm.

“It’s clear that these long-term earthquake records show general signs of storm activity around the world, in addition to long-term intensification due to global warming,” Astor said. “It looks like a small signal from year to year, but it’s gradual and becomes very clear when you work with more than 30 years of data.”

Astor and his colleagues found that global average ocean wave energy has increased by a median of 0.27% per year since the late 20th century, and by 0.35% per year since January 2000.

Stormy weather forecast

Mr Astor said storm surges associated with larger waves and larger storms, coupled with rising sea levels, were a serious global problem for coastal ecosystems, cities and infrastructure.

“In addition to efforts to mitigate climate change itself, we will need to implement resilient strategies to ensure coastal populations and ecosystems are protected from an increasingly stormy future.” said Astor.

Reference: “Increase in ocean wave energy observed in Earth’s seismic wave field since the late 20th century” by Richard C. Astor, Adam T. Ringler, Robert E. Anthony, and Thomas A. Lee, October 32, 2023 , nature communications.
DOI: 10.1038/s41467-023-42673-w

This research was funded by the U.S. Geological Survey and the National Science Foundation.

Source: scitechdaily.com