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Extreme long-distance running triggers major surge in body's cannabis-like molecules

A marathon, 100 kilometers or even 230 kilometers in one go: Anyone running such distances puts enormous strain on their body.

4 Sep 2026

Research reveals how natural enzymes transcribe expanded eight-letter genetic code

All known life on earth utilizes the same genetic alphabet, consisting of four letters. Now, researchers at University of California San Diego have demonstrated that one of biology's most essential enzymes can accurately read and transcribe an expanded, eight-letter genetic alphabet.

4 Sep 2026

Ovulation drives women to use conspicuous luxury to attract men

Hormonal fluctuations associated with fertility are associated with a greater tendency for women to use conspicuous luxury symbols, potentially to be noticed by men, according to a study published September 2, 2026, in the open access journal PLOS One by Aekyoung Kim of Jeonbuk National University of the Republic of Korea, and colleagues.

4 Sep 2026

School-based behavioral therapy cuts gaming disorder risk among vulnerable adolescents

School-based prevention programs are designed to help protect adolescents from gaming disorder and problematic online habits.

4 Sep 2026

Submicron IR map of the human cell: Label free cellular imaging with O-PTIR, FTIR and Raman

What if you could map the chemistry inside a human cell - without fluorescent labels or stains?

From Photothermal Spectroscopy Corp 4 Sep 2026

Early autism identification faces gaps beyond screening

A Pediatric Investigation study finds that early autism identification can fail after screening, with gaps in referral, diagnosis, service capacity, and support.

4 Sep 2026

Researchers find greater microplastic burden in lung cancer patients

People with lung cancer are more likely to have microplastics in their lungs and to have larger quantities of microplastics in their lungs, according to research that will be presented at the European Respiratory Society (ERS) Congress in Barcelona, Spain.

4 Sep 2026

Gestational diabetes history linked to earlier development of type 2 diabetes

New research to be presented at the Annual Meeting of The European Association for the Study of Diabetes (EASD) in Milan, Italy (Sept 28 – Oct 2) shows that, in women that develop type 2 diabetes (T2D), those who had gestational diabetes (GD) when pregnant are developing T2D on average almost 13 years earlier than those who did not.

3 Sep 2026

What your gut microbes may have to do with how your brain ages

This review examines how diet-driven changes in the gut microbiota and microbial metabolites may influence cognitive aging through immune, metabolic, neural, endocrine, and barrier-related pathways. It highlights SCFAs, tryptophan-derived metabolites, and bile acids as key signaling mediators while emphasizing that much of the mechanistic evidence remains preclinical and human evidence is largely associative.

3 Sep 2026

Far-UVC light tested to combat avian influenza on farms

When a strain of highly pathogenic avian influenza, HPAI, tore through U.S. poultry farms in early 2025, farmers culled tens of millions of birds and egg prices soared.

3 Sep 2026

Some fertility treatments may raise Kawasaki disease risk in children

A large-scale study in Japan, led by researchers from the University of Osaka and the Osaka Women's and Children's Hospital, has found that certain fertility treatments are associated with an increased risk of Kawasaki disease before age five, although the association differed by treatment type.

3 Sep 2026

Ambient AI scribes may risk missing vital patient information

The use of Artificial Intelligence (AI) tools to take notes can change the nature of interactions between patients and clinicians, sometimes missing vital information, according to the results of a new review.

3 Sep 2026

What 107 professional MMA fighters actually ate before and after weigh-in

Professional UFC fighters followed highly structured dietary patterns around competition, sharply restricting carbohydrates, fiber, fluids, and sodium before weigh-in before rapidly increasing carbohydrate, fluid, and sodium intake afterward. Despite aggressive post-weigh-in refueling, carbohydrate intake fell again on fight day, suggesting that some fighters may not fully restore glycogen stores before competition.

3 Sep 2026

The obesity-microbiome story is more complicated than ‘good’ and ‘bad’ bacteria

This review finds that obesity is linked to reciprocal interactions between diet, the gut microbiome, microbial metabolites, and host metabolic pathways that influence appetite, insulin sensitivity, inflammation, and energy balance across the lifespan. It highlights diet as a particularly tractable way to influence this system, while emphasizing that microbiome changes associated with GLP-1 therapies remain difficult to separate from weight loss and that functional multi-omics approaches may help enable more personalized interventions.

3 Sep 2026

What your genes can, and cannot, tell us about your personality

A meta-analysis of 46 cohorts involving 611,037 to 1.14 million participants identified 1,260 lead genetic variants associated with the Big Five personality traits, including 824 in previously unlinked genomic regions. The associations were broadly consistent across cohorts and measurement contexts, while polygenic analyses linked personality-related genetics to health, behavior, psychopathology, and life outcomes, although effects were modest and could not predict individual behavior.

3 Sep 2026

As life expectancy rises, healthy aging is more important than ever

Global disease burden is shifting toward aging-related conditions as people live longer, with these diseases now representing the largest expected lifetime health burden for newborns across all income groups. Modeling suggests that reducing aging-related disease could produce unusually large and progressively greater gains in both longevity and healthy life expectancy because improvements in survival and health reinforce one another.

3 Sep 2026

Semaglutide extended lifespan in older female mice, but that was not the only finding

Late-life semaglutide treatment slowed age-related physiological decline, attenuated multiple molecular hallmarks of aging, and extended median lifespan from 742 to 834 days in aged female mice. The drug reproduced many effects of calorie restriction while providing additional benefits in exploratory behavior, spatial memory, and glucose control, suggesting that some effects extend beyond reduced calorie intake alone.

3 Sep 2026

Coffee, tea and dementia risk: Why the amount you drink could matter

A targeted perspective synthesizes epidemiological and mechanistic evidence examining how caffeine consumption during midlife may influence dementia risk later in life. The authors highlight potential roles for dose, age, CYP1A2 genotype, adenosine signaling and cultural drinking practices, while stressing that current observational evidence cannot establish causality.

3 Sep 2026

Same foods, different timing, very different glucose patterns

In a randomized crossover study of 22 healthy, normal-weight Chinese men, consuming canola oil alone or with spinach before a high-glycemic mashed-potato meal produced flatter post-meal glucose and insulin responses than spinach alone or no preload. The effects were associated with increased GLP-1 signaling and slower gastric emptying, with the findings indicating that the unsaturated oil was the primary driver of the metabolic response.

3 Sep 2026

The four-day week has plenty of fans. Now researchers are testing what it really changes

The Sussex 4-Day Week study is a 14-week UK protocol designed to investigate how reduced working hours affect physical and mental health, wellbeing, sleep, work performance, and potential biological and psychological mechanisms. Researchers aim to combine questionnaires with actigraphy, inflammatory biomarkers, interoception testing, and brain imaging in at least 150 adults, with data collection expected to continue until 2027.

3 Sep 2026