About 1 in 8 US adults has tried or uses GLP-1 medication with 1 in 4 of those for weight loss but muscle loss can account for up to 40% of total weight loss. Scientists discover molecule that reverses muscle loss in mice, suggest that adding drug to boost this molecule may help prevent muscle loss.

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Smokers unlikely to quit with just willpower, say researchers. Those using e-cigarettes, medication or heated tobacco products are more likely to successfully give up smoking.

Alpha male baboons are the most stressed out among their peers. It’s not the time they spend fighting with other males that raises their stress hormone levels. Instead, it’s the effort they put into their female mates and directly correlated with the time they spent monopolizing fertile females.

Life expectancy in the Gaza Strip almost halved since the war started - Study found the average life expectancy dropped from 75.5 years to 40.5 years (-46.3%), and the decrease was higher in men (-51.6%) than in women (-38.6%). May be underestimated as excludes missing people and indirect effects.

Men lose half their emotional support networks between 30 and 90, study finds. Men’s networks were smaller when they were married, suggesting a consolidation of emotional reliance on their spouse. Men who grew up in warmer family environments had larger emotional support networks in adulthood.

Microplastics in the bloodstream can induce cerebral thrombosis by causing cell obstruction and lead to neurobehavioral abnormalities in mice. Human health is being threatened by microplastic pollution. It is detected in bloodstream and multiple tissues of humans, disrupting physiology of organs.

Adults diagnosed with ADHD have shorter life expectancy, UK study shows. Men with a diagnosis of ADHD die 7 years sooner, on average, than similar people without, while for women the life expectancy gap is almost 9 years, the first study of its kind has revealed.

Medical conditions that deprive testes of oxygen, like sleep apnoea, may be contributing to decline in male fertility over past 50 years, study suggests. High-altitude activities like hiking can also cause lack of oxygen in testis - fertility effects are temporary but take a few months to reverse.

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Science has a reproducibility crisis on its hands, and biomedical researchers believe the infamous “publish or perish” research culture is behind it. Over 70% could not reproduce another scientist’s experiment. More than 62% attributed irreproducibility in science to “publish or perish” culture.

Antibiotics, antivirals and vaccines could help tackle dementia, study suggests. Using drugs approved for other conditions could dramatically speed up hunt for cure, experts say.

The sexy and formidable male body: Study found with improvements in living conditions, men’s gains in height and weight are more than double those of women’s, increasing sexual size dimorphism, which confers on them advantages related to female choice and during physical competition with other men.

Muscular strength and good physical fitness could halve the risk of cancer patients dying from their disease. Combination of strength and fitness was associated with an 8-46% lower risk of death in patients with stage 3 or 4 cancer, and a 19-41% lower risk of death in lung or digestive cancers.

More than 40% of postdoctoral researchers leave academia, finds study of 45,500 researchers. Those who stayed and landed a coveted faculty position were more likely to have a highly cited paper, changed their research topic between PhD and postdoc, or moved abroad after receiving their doctorate.

Cycle of coral bleaching on the Great Barrier Reef now at ‘catastrophic’ levels - Study of 2023-2024 global marine heatwave found 66% of colonies were bleached by February 2024 and 80% by April. By July, 44% of bleached colonies had died, with some coral experiencing a staggering 95% mortality rate.

Short video applications like TikTok have gained prominence. New research from China indicate that the more elementary school students use short videos, the lower their academic performance, with attention mediating in this relationship.

Trust in scientists and their role in society across 68 countries - Right-leaning and conservative political orientation are negatively associated with trust in scientists in several European and North American countries.

People with pockets of fat hidden inside their muscles (intermuscular fat) are at a higher risk of dying or being hospitalised from a heart attack or heart failure, regardless of their BMI or waist circumference. Fat stored under the skin (subcutaneous fat) did not increase the risk.

Scientists successfully control when genetically engineered non-toxic bacteria, after intravenously injected, invades cancer cells and delivers cancer-fighting drugs directly into tumors in mouse models, sparing healthy tissue, and delivering more therapy as the bacteria grow in the tumors.

Textbooks need to be rewritten: RNA, not DNA, is the main cause of acute sunburn - Textbooks say that sunburn damages DNA, leading to cell death and inflammation. But study found in mice and human skin cells that this is a result of damage to RNA, not DNA, that causes the acute effects of sunburn.

Study finds gender gap with children when it comes to negotiating - in a series of cognitive tasks, boys had a higher opinion of their abilities and therefore asked for higher bonuses, even though they performed no better than girls did in these tasks.

Anti-science movements are associated with harassment of—and violence against—scientists. A new study found that science cynicism (the perception that scientists are incompetent and corrupt) and Dark personality traits (psychopathy and narcissism), predict the willingness to harm scientists.

Semaglutide and liraglutide, developed to treat obesity, were associated with reduced risks of hospitalization due to alcohol use disorder in people with obesity or diabetes. Strikingly, the reduction in risk was greater than that observed with approved medications for alcohol use disorder.

Scientists successfully used lab-grown viruses to make cancer cells resemble pig tissue, provoking an organ-rejection response, tricking the immune system into attacking the cancerous cells. This ruse can halt a tumour’s growth or even eliminate it altogether, data from monkeys and humans suggest.