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Over the past two decades, US citizens traveling abroad have become relatively more likely to die from vehicular and non-vehicular accidents, even as absolute fatalities declined. Rising proportional mortality ratios highlight persistent regional risks, especially in lower-income destinations.

Researchers found that higher relative fat mass (RFM), a measure of visceral body fat, is significantly associated with increased infertility risk in U.S. women aged 20–44. The study suggests RFM may be a more sensitive screening tool for infertility risk than traditional BMI, especially in women with normal weight but high visceral fat.

Neanderthals at Neumark-Nord, Germany, systematically transported and processed the bones of at least 172 large mammals to extract nutrient-rich "bone grease" nearly 125,000 years ago. This finding rewrites the timeline for large-scale fat processing, revealing unexpectedly complex resource strategies among Neanderthals.

A research team from Bochum and Hannover shows that the hepatitis E virus also attacks organs other than the liver.

In the early 2000s the U.S. Diabetes Prevention Program (DPP), a large randomized clinical trial, showed that intensive lifestyle modification was better than a medication called metformin at preventing at-risk patients from developing Type 2 diabetes.

The human gut is home to trillions of microbes, yet scientific understanding has largely focused on bacteria, leaving the virome—the community of viruses—relatively uncharted.

New research from UC Davis Comprehensive Cancer Center has uncovered an evolutionary change that may explain why certain immune cells in humans are less effective at fighting solid tumors compared to non-human primates.

Scientists have revealed how certain immune cells may be quietly helping prostate cancer grow - and how blocking them could help the body fight back.

Researchers examine how the use of animal testing to identify endocrine-disrupting substances in the EU can be reduced. Although it is, in principle, possible to identify such substances without using animals, non-animal methods are still rarely applied.

There has been a lot of research focused on understanding women's experiences with depression during the menopause transition and early menopause, but there are few studies on perimenopausal women's experiences with emotional arousal, such as anger.

Canada must address the growing crisis of communicable diseases that has occurred in tandem with a rise in misinformation that threatens our health systems, argue authors in an editorial in CMAJ.

Adolescents who experience both loneliness and low resilience are much more susceptible to developing anxiety and depression as adults.

Researchers have long focused on the STING (Stimulator of Interferon Genes) pathway as a way to harness the immune system's natural defenses against cancer.

Researchers in Japan have successfully generated lung cells similar to alveolar epithelial type 2 (AT2) cells from mouse embryonic fibroblasts without using stem cell technology.

A new study from Mass General Brigham researchers offers a stark reminder of how pervasive cell phone use while driving is among young people.

A research team has evaluated the real-world impact of a community-based pneumococcal vaccination support program for older adults conducted in Sera Town, Hiroshima Prefecture, Japan.

Disrupted care during the covid-19 pandemic led to sharp increases in other non-covid causes of illness and death, particularly mental health disorders, malaria in young children, and stroke and heart disease in older adults, finds a study published by The BMJ today.

Alcohol consumption is widely known to affect decision-making, but a recent study led by researchers from The University of Texas at El Paso found that the extent of that impact may have something to do with the drinker's gender.

Researchers at McMaster University, Cleveland Clinic and Case Comprehensive Cancer Center have uncovered how a protein long associated with Alzheimer's disease helps lung cancer spread to the brain – a discovery that offers hope that existing Alzheimer's drugs could be repurposed in preventing cancer's spread.

Women who see themselves as having lower social status are more likely than other people to show early signs of heart stress linked to future disease risk, according to a new study led by researchers at McGill and Concordia universities.