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New meta-analysis challenges claims of athletic advantage for transgender women

A meta-analysis of 52 studies reveals insights into body composition and fitness in transgender athletes, challenging assumptions about competitive advantage.

6 Feb 2026

Burn injuries may have driven key human evolutionary traits

Humans' exposure to high temperature burn injuries may have played an important role in our evolutionary development, shaping how our bodies heal, fight infection, and sometimes fail under extreme injury, according to new research.

4 Feb 2026

Study finds ADHD symptoms linked to higher internet addiction risk in college students

A cross-sectional study of Chinese college students found ADHD symptoms were associated with internet addiction, with insomnia and executive dysfunction acting as mediating factors. Moderate and high physical activity levels were also linked with lower internet addiction symptoms, although causality cannot be inferred.

4 Feb 2026

High intake of ultraprocessed foods increases risk of both all-cause and cancer-specific death

Cancer survivors who consumed higher amounts of ultraprocessed foods as part of their diet had a significantly increased risk of both all-cause and cancer-specific death.

4 Feb 2026

New immunotherapy could replace daily pills after kidney transplantation

A new study offers hope that kidney transplant patients could one day have a monthly treatment instead of multiple pills every day.

3 Feb 2026

Study maps highest hemochromatosis risk in Celtic populations

People from the Outer Hebrides and north-west Ireland have the highest risk of developing a genetic disease that causes a dangerous build-up of iron in the body, a study suggests.

3 Feb 2026

Aging alters social preferences through distinct brain mechanisms

The loss of social connectedness as people age increases the odds of cognitive-related disorders and can worsen health outcomes in older populations. But is there a direct relationship between social behavior and cognition? Subhadeep Dutta Gupta, Peter Rapp, and colleagues, from the National Institute on Aging, developed a rat model to probe social cognition in the aging brain.

2 Feb 2026

One-third of adolescents report aggression toward parents

Physical aggression by young people toward their parents occurs quite frequently – yet the subject remains taboo.

2 Feb 2026

Bat viruses in Indochina Peninsula reveal viral diversity, PEDV origins, and spillover risks

Bats, critical reservoirs of viruses with significant cross-species spillover risks, have long been understudied in the Indochina Peninsula.

2 Feb 2026

Oxybutynin shows promise in managing hot flashes for prostate cancer patients

A national clinical trial led by the Alliance for Clinical Trials in Oncology has found that oxybutynin, a drug often used to treat overactive bladder symptoms, reduces hot flashes compared to the placebo in men receiving hormone therapy for prostate cancer.

2 Feb 2026

Men develop premature heart disease earlier than women

The study uncovers critical insights into sex-based heart disease risks, highlighting young adulthood as key for effective cardiovascular health interventions.

2 Feb 2026

Do lifestyle choices affect university students' grades

Researchers examine the association between academic performance on secondary school exams and lifestyle behaviors among university students.

2 Feb 2026

New wearable device may reduce hand tremors linked with neurological conditions

UBC Okanagan researchers have advanced their work on developing a non-invasive, accessible way to reduce uncontrolled hand tremors.

30 Jan 2026

Older adults' driving habits may provide early warning signs of cognitive decline or dementia

Older adults' driving habits revealed clues about their brain health and may provide early warning signs of cognitive decline or dementia, according to a preliminary study to be presented at the American Stroke Association's International Stroke Conference 2026.

29 Jan 2026

Nitrate source matters more than nitrate amount

Findings suggest that plant-sourced nitrates may reduce dementia risk, while animal and water sources are linked to increased risk, emphasizing diet quality.

29 Jan 2026

Eating melatonin-rich foods is linked to lower obesity and depression rates

This cross-sectional analysis of 8,320 Brazilian adults quantified melatonin intake from habitual diets and examined associations with multiple chronic health outcomes. Higher dietary melatonin intake was inversely associated with obesity and depression in a non-linear pattern, with no significant associations observed for other conditions.

28 Jan 2026

Air pollution, not diet, shows the strongest link to poorer concentration in schoolgirls

This cross-sectional study of 300 school-aged girls in Tehran found that higher air pollution exposure was consistently associated with poorer concentration, while dietary antioxidant capacity showed weaker, model-dependent links to attention. No significant associations or interactions were observed for short-term memory, highlighting pollution exposure as the dominant factor influencing attentional performance.

28 Jan 2026

Sleeping without pillows may help reduce nighttime eye pressure in glaucoma

Sleeping without pillows may help lower high internal eye pressure, build-up of which causes optic nerve damage and glaucoma-the leading cause of irreversible blindness worldwide–in people with the condition, suggests preliminary research, published online in the British Journal of Ophthalmology.

27 Jan 2026

The neurological benefits of grandparenting

Helping to care for grandchildren may serve as a buffer against cognitive decline in older adults, according to research published by the American Psychological Association.

27 Jan 2026

Olive oil type matters for cognition and gut health in older adults

Higher intake of virgin and total olive oil was associated with modest but significant improvements in cognitive performance over two years in older adults with metabolic syndrome. These associations were partly linked to gut microbiota composition, with specific taxa such as Adlercreutzia contributing a small mediating effect.

26 Jan 2026