The Advantages of Group Exercise Over Solo Workouts

“Exercising with peers significantly boosts workout attendance.”

Rich Bowen Photography/Alamy

As a child, I steered clear of team sports; my hand-eye coordination was lacking, and my competitive nature led to more frustration than fun. However, new studies are challenging my perspective. Research indicates that group exercise, particularly in team sports, may provide greater health benefits than going solo.

A 2023 analysis showed that participating in sports—be it for fun or competition—boosts mental well-being, decreasing stress and anxiety levels, and enhancing self-esteem. These outcomes are notably stronger in team sports, suggesting they have a greater positive impact on mental health than other exercise forms, independent of physical activity levels.

The social elements of sports can amplify these physical advantages. Exercising with others increases the likelihood of attending workouts. In a 2024 study, over 770 participants received cash incentives for gym visits, with some required to bring friends. Those with workout partners attended about 35% more often than individuals who could go alone. Follow-up studies suggested this was due to greater accountability and enhanced enjoyment from exercising together.

Other research reveals that this enjoyment can even enhance performance. In one study, participants in a free community run reported feeling more energized when joined by friends or family, resulting in faster paces. Additionally, research on competitive rowers revealed that viewing pictures of loved ones while rowing allowed participants to endure about 20% longer compared to those who looked at images of strangers.

The exact reason remains unclear, but it likely relates to how we process fatigue. Ultimately, our brain governs our muscles, and fatigue serves as a protective mechanism, preventing us from overextending ourselves and risking injuries. Exercising alongside friends (or even just seeing their photos) signals safety to our brains, potentially delaying fatigue.

This concept aligns with a significant shift in exercise psychology, previously emphasizing competition as a performance enhancer. Increasingly, research is exploring the impact of cooperation. After all, our innate ability to run long distances likely developed through collective hunting, suggesting we may be inherently designed to exercise in groups.

This revelation brings me comfort, prompting a shift in focus from competition to collaboration in sports. I’m planning to run a half marathon with my best friend soon, and her suggestion to train together feels like the key to reaching the finish line.

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The Limited Advantages of GPT-5 Indicate a Slowdown in AI Advancement

GPT-5 is the latest version of OpenAI’s flagship language model

Cheng Xin/Getty Images

OpenAI has recently unveiled GPT-5, their latest AI model, marking another step in AI evolution rather than a dramatic breakthrough. Following the successful rollout of GPT-4, which significantly advanced ChatGPT’s capabilities and influence, the improvements found in GPT-5 seem marginal, indicating that innovative strategies may be needed to achieve further advancements in artificial intelligence.

OpenAI has described GPT-5 as a notable advancement over its predecessor, boasting enhancements in areas such as programming, mathematics, writing, healthcare, and visual comprehension. The company claims a reduction in the incidence of “hallucinations,” instances where AI generates incorrect information as factual. According to their internal metrics, GPT-5 claims to excel in complex and economically significant tasks across various professions, asserting it matches or exceeds expert-level performance.

Notably, however, GPT-5’s results on public benchmarks are less competitive when compared with leading models from other companies, such as Anthropic’s Claude and Google’s Gemini. Although it has improved from GPT-4, the enhancements are subtler than the leap observed between GPT-3 and GPT-4. Numerous users have expressed dissatisfaction with GPT-5’s performance, citing instances where it struggled with straightforward queries, leading to a chorus of disappointment on social media.

“Many were expecting a major breakthrough, but it seems more like an upgrade,” remarked Mirela Rapata from the University of Edinburgh. “There’s a sense of incremental progress.”

OpenAI has disclosed limited details regarding the internal benchmarks for GPT-5’s performance, making it challenging to assess them scientifically, according to Anna Rogers from the University of Copenhagen.

In a pre-release press briefing, Altman emphasized, “It feels like engaging with an expert on any topic, comparable to a PhD-level specialist.” Yet, Rogers pointed out that benchmarks do not substantiate such claims, and the correlation between advanced degrees and intelligence is questionable. “Highly intelligent individuals do not always hold PhDs, nor does a PhD guarantee superior intelligence,” she noted.

The modest advancements in GPT-5 may reflect broader challenges within the AI development community. Once believed to be an inexorable progression, the capabilities of large-scale language models (LLMs) seem to be plateauing, as recent results have not supported the prior assumptions that increased training data and computational power would lead to significant enhancements. As Lapata noted, “Now that everyone has adopted similar approaches, it’s evident that we’re following a predictable recipe, utilizing vast amounts of pre-training data and refining it during the post-training phase.”

However, whether LLMs are nearing a plateau remains uncertain, as technical design specifics about models like GPT-5 are not widely known, according to Nicos Aretra from the University of Sheffield. “It’s premature to claim that large-scale language models have reached their limits without concrete technical insights.”

OpenAI is also exploring alternative methods to enhance their offerings, such as the new routing system in GPT-5. Unlike previous versions where users could select from various models, GPT-5 intelligently assesses requests and directs them to the appropriate model based on the required computational power.

This strategy could potentially be more widely adopted, as Lapata mentions, “The reasoning model demands significant computation, which is both time-consuming and costly.” Yet, this shift has frustrated some ChatGPT users, prompting Altman to indicate that efforts are underway to enhance the routing process.

Another OpenAI model has recently achieved remarkable scores in elite mathematics and coding contests, hinting at a promising future for AI. This accomplishment was beyond the capabilities of leading AI models just a year ago. Although details on its functioning remain scarce, OpenAI staff have stated that this success implies the model possesses improved general reasoning skills.

These competitions allow us to evaluate models on data not encountered during training, according to Aletras, but they still represent a narrow aspect of intelligence. Enhanced performance in one domain may detrimentally affect results in others, warns Lapata.

GPT-5 has notably improved in pricing, as it is now significantly cheaper compared to other models—e.g., Claude models are approximately ten times more expensive when processing an equal volume of requests. However, this could lead to financial issues for OpenAI if revenue is insufficient to sustain the high costs of developing and operating new data centers. “Pricing is extraordinary. It’s so inexpensive; I’m uncertain how they can sustain it,” remarked Lapata.

Competition among leading AI models is intense. The first company to launch a superior model could secure a substantial market share. “All major companies are vying for dominance, which is a challenging endeavor,” noted Rapata. “You’ve only held the crown for three months.”

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Source: www.newscientist.com

Exercise Science: Surprising Advantages of Isometric Exercise

Brunette woman performing isometric exercise with a pink exercise mat. ShutterStock ID 2490925757.

“Isometric movements like planks can help alleviate pain.”

Sutulastock/Shutterstock

In my previous article, I discussed how isometric exercises, which involve holding muscles in a fixed position, can effectively lower blood pressure. Since then, I’ve started integrating them into my workouts. This leads me to ask: Do these exercises provide additional benefits?

The answer is yes—and some benefits were surprising. Isometric exercises, such as planks (as shown) and wall squats, can alleviate pain, prevent injuries, and significantly enhance fitness in an efficient manner. In fact, most individuals will likely gain from incorporating these into their workout regimes.

One of the most notable advantages of isometric exercises is their ability to build strength with minimal movement, making them less physically demanding compared to more dynamic workouts. They are indeed effective: a review revealed that isometric training over 42-100 days could boost muscle strength by as much as 92%.

These strength gains can be highly targeted. Athletes frequently employ isometric exercises to strengthen the challenging aspects of their movements, like the lowest point in a squat. This focused training may enhance overall performance, as researchers have discovered that isometric training could surpass jump-based training in terms of durability.

Moreover, these exercises are gentle on the body, making them easy to include at the beginning or end of a standard workout, providing extra benefits. They serve as excellent warm-ups and research has shown they can reduce muscle soreness post-exercise without hindering running performance. This contrasts with static stretching, which doesn’t alleviate muscle pain and can actually decrease performance.

Incorporating some isometric movements into your warm-up routine can also help in preventing injuries. Slow, controlled training that targets less active stages during workouts is commonly used to guard against hamstring injuries in soccer players; however, isometric exercise is found to be more effective, according to a study.

While the exact mechanism remains unclear, it appears that isometric exercises can activate the signaling pathways between nerves and muscles, enhancing muscle responsiveness during workouts. This could help in correcting muscle imbalances, which are often a source of injuries.

These advantages are not limited to athletes. A review published this year demonstrated that isometric training significantly reduces pain and strengthens muscles in individuals with osteoarthritis. Because they are low-impact, these exercises are perfect for beginners and those with limited mobility due to injuries.

Considering their myriad benefits, isometric exercises have become a consistent part of my training routine. Furthermore, because they require no equipment and minimal space, I can perform them almost anywhere at any time.

Grace Wade is a health reporter for New Scientist, based in the US.

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Postponing the gift of a cell phone annually offers significant advantages: Managing screen time for children everywhere.

Despite the availability of affordable cell phones, parents have new ways to stay connected with their children. However, this development has also sparked debates on screen time, safety, and social media.

As worries about phone usage rise and the age at which children get their first mobile phone decreases, countries worldwide are considering ways to address this issue in schools and homes.

While there’s no single solution, various action plans and suggestions are being explored, ranging from strict laws to grassroots initiatives.

Our correspondent delves into some of the noteworthy solutions to screen time as Australia and Spain gear up to implement stringent laws to combat the problem.

Australia: “Ensuring our children have a good childhood.”

In a significant move, Australia recently passed a law prohibiting social media use for under-16s, although specifics regarding its implementation and application are unclear.

While some Australian states already ban mobile phones in schools, a new federal ban aims to completely restrict social media usage for children under 16 by year-end. The law grants the communications minister authority to determine which platforms are restricted, likely including Snapchat, Instagram, Facebook, and TikTok.

YouTube is expected to be exempt due to its claimed educational benefits.

The legislation mandates platforms to verify users’ ages and take necessary steps to ensure compliance, with penalties of up to A$50m for non-compliance. Trials for age verification technology are ongoing, including facial age estimation and other authentication methods.

Australian Prime Minister Anthony Albanese emphasized that the ban aims to offer children “a childhood”, encouraging them to engage in outdoor activities and sports instead of being glued to their phones.

Josh Taylor, Melbourne

Spain: “You can use ours.”

Spain’s government is proposing a bill to raise the minimum age for social media account registration from 14 to 16, along with mandatory age verification measures for tech companies.

Additionally, the bill suggests default parental controls on smartphones and a national education campaign to educate children and teens on responsible social media usage.

An expert panel has recommended including warning labels on digital devices sold in Spain to inform consumers of the health risks associated with social media and technology.

In Barcelona’s Poblenou district, parents initiated a campaign to delay children’s access to mobile phones until age 16. This movement quickly spread across Catalonia, emphasizing the importance of holding off on phone ownership until a later age.

Major project spokesperson Nuria González Rojas noted the significant impact of delaying mobile phone ownership, with over 72% of Spanish children owning smartphones by age 12.

In another initiative, Basque parents’ organization Archa Brua is piloting schemes to delay mobile phone ownership with support from schools, families, and local businesses.

Sam Jones, Madrid

France: “Take back control of your screen”

French President Emmanuel Macron commissioned a report urging a reassessment of screen usage to safeguard children’s well-being and democracy’s future.

The report advocates for delaying smartphone usage until age 13, restricting access to social media until 18, and banning mobile phones with internet access until after school hours.

Experts stress the need to shield children from profit-focused tech influences due to adverse effects on vision, sleep, and overall health.

Macron urges ministers to consider and implement the report’s recommendations.

Angelique Chrysafis (Paris)

Italy: school ban

Italy has issued a blanket ban on smartphones and tablets in primary and middle school classrooms, citing disruptive incidents like physical altercations between students and teachers.

Education Minister Giuseppe Valditara supports efforts to ban mobile phones for children under 14 and social media profiles for those under 16.

Angela Giuffrida (Rome)

Germany: “The longer we can delay children from using smartphones, the better.”

German schools can’t outright ban cellphones, but restrictions on their use in classrooms and during breaks are in place.

Efforts to enhance digital literacy among youth are encouraged, with calls in some regions for total bans on mobile phones in elementary schools.

Pediatric experts advocate delaying smartphone ownership until age 11 to protect children’s development, noting adverse effects on mental health and well-being from early exposure to social media.

Despite concerns surrounding smartphones, Germany’s decentralized governance system means a national policy remains elusive.

Deborah Cole, Berlin

Source: www.theguardian.com

The advantages of anti-aging drugs surpass the disadvantages

The field of anti-aging medicine has exploded in recent years as discoveries about the basic biology of aging are translated into experimental treatments. The latest fountains of youth to bubble out of the lab come in the form of vaccines against age-related diseases such as cancer, heart disease, and dementia. The first of these could be available by the end of the decade. Multipurpose anti-aging vaccines are also in development (see “New Anti-Aging Vaccine Shows Hope for Preventing Diseases, Including Alzheimer's”).

The benefits of such a vaccine are clear: It would be welcome to limit the impact of age-related conditions on people who live into old age and the loved ones who often end up caring for them, and it could also help address the increasingly severe social and economic costs of these diseases.

But like all anti-ageing measures, there are potential downsides. Significantly extending the lifespan of millions of people could lead to a population explosion on an already resource-strained planet. If vaccines simply delay the onset of age-related symptoms, they postpone the costs to people and society. And, as Nobel laureate Venki Ramakrishnan said earlier this year, a long-lived society is prone to a stagnant one.

These are common fears, and the standard answer is that the goal is to extend healthspan: that is, for people to live longer, free from old-age diseases, before suddenly succumbing to death.

At least, that's the idea. The results won't be known until the treatment is deployed on a large scale, at which point it'll be too late to put the genie back in the bottle. But that's not an option anyway. If vaccines or other anti-aging treatments are effective and affordable, they'll be used.

Moreover, no one would argue that innovations like antibiotics, vaccines, and advanced diagnostics were bad ideas, even though they have ushered in an era of age-related diseases. Similarly, life-saving medical advances should not be feared because of unintended consequences; any downsides are a price worth paying if they can make life longer and less painful.

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Source: www.newscientist.com

The Unexpected Advantages of an Asymmetric Face, Body, and Brain

When you look in the mirror, you may notice slight imbalances in your facial features, such as your nose crooked to the left, a wrinkle that only appears under one eye, or your ears slightly higher than the other. .

For centuries, this lack of perfect balance has been thought to detract from our beauty, and there are a number of services aimed at “fixing” it, from photo filters to cosmetic surgery. But asymmetry is built into the human body and brain, and for good reason. Moreover, new research suggests that it has little effect on your appeal to others.

First, lopsided arrangement of our internal organs. For most people, the heart, stomach, and spleen are all on the left side of the spinal cord, and the liver and gallbladder are on the right side. This makes more efficient use of thoracic and abdominal space compared to a structure that aligns all organs to the spine.

Why is the human brain asymmetrical?

What about your brain? Although her two hemispheres may appear to be reflective of each other, corresponding areas on each side have different responsibilities. You will notice the effect this has on your movements. If you're right-handed, it's because the left hemisphere of your brain, which is connected to the right side of your body, is slightly more specialized in controlling the fine muscles of your fingers, increasing your manual dexterity. .

You may be surprised to find that this “lateralization” is seen in many fields…

Source: www.newscientist.com