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Body fat percentage predicts male fertility better than BMI

A man's body fat percentage may be a better indicator of his reproductive health than body mass index (BMI) according to a large study of over 1000 Danish men.

29 Jul 2026

Researchers train AI to detect diabetes and assign four diagnostic labels

Researchers developed a two-stage machine learning framework that detected diabetes and classified records as prediabetes, type 1, type 2, or type 3c diabetes using two public datasets. XGBoost showed strong internal performance, but inconsistent model rankings, non-standard variables, and the absence of external clinical validation limit immediate use.

29 Jul 2026

We underestimate how much personality changes with age, study finds

Researchers compared beliefs from 887 US adults with modeled lifespan trajectories from 166,971 participants across eight longitudinal studies. Population-average Big Five traits changed as much as or more than many health, financial, psychological, and social measures, despite people perceiving personality as unusually stable.

29 Jul 2026

Daily routines reduce pain and depression in older adults

University of Missouri researchers have identified a simple, effective way to improve quality of life. A new study found that maintaining a consistent daily routine can reduce physical pain and ease symptoms of depression, demonstrating how everyday habits can have a meaningful impact on well-being, particularly for older adults with insomnia.

28 Jul 2026

Longer lives now come with more years spent in poor health worldwide

Global life expectancy rose from 64.6 to 73.8 years between 1990 and 2023, but healthy life expectancy did not keep pace. The widening morbidity gap means most populations now spend a decade or more in poor health.

26 Jul 2026

Planetary Health Diet lowers cardiovascular risk in older women

A 20-year study of more than 65,000 postmenopausal women found that higher adherence to the Planetary Health Diet was associated with a lower risk of overall cardiovascular disease, coronary heart disease, stroke and heart failure.

25 Jul 2026

Study finds greater social jetlag linked to a later eating pattern

In a 14-day study of 101 healthy UK adults, greater social jetlag was associated with a later distribution of energy intake, particularly greater late-evening intake among women. The effects were modest, varied by sex and day type, and did not establish whether total daily energy intake differed between groups.

23 Jul 2026

GLP-1 receptor agonists may increase hair loss risk

Use of glucagon-like peptide-1 (GLP-1) receptor agonists used to treat type 2 diabetes and obesity are associated with an increased risk of hair loss (alopecia) in adults with type 2 diabetes, finds a study published by The BMJ today.

22 Jul 2026

Global study reveals widening gap between lifespan and healthspan

People around the world are living longer than ever before but spending more of those additional years in poor health, according to a new Global Burden of Disease (GBD) study published in The Lancet Public Health.

21 Jul 2026

Childhood ultra-processed food intake associates with altered insulin responses

Researchers analyzed dietary and metabolic data from 508 nondiabetic Mexican American children in the SAFARI family cohort, finding that higher ultra-processed food scores were associated with lower insulin sensitivity and altered early insulin secretion measures. The exploratory cross-sectional study did not establish causality, and its multiple comparisons, historical dietary data, and questionnaire-based UPF estimates warrant confirmation in longitudinal studies and trials.

21 Jul 2026

Copper isotope shows promise for early childhood anemia detection

The rising incidence of anemia and overweight has been identified as a serious public health problem worldwide, especially among children and adolescents.

21 Jul 2026

Study tests chronotype’s liver link and finds no significant association

Researchers found no significant association between chronotype and FibroScan-derived liver fat or stiffness in 119 medication-naïve adults with overweight or obesity. The exploratory findings cannot exclude smaller effects, particularly for fibrosis, and require confirmation in larger longitudinal studies.

21 Jul 2026

Drinking more water with meals may lead people to eat more

In two randomized crossover studies involving 86 adults, greater water consumption and more frequent switching between bites and sips were associated with higher food and energy intake during beef chili and chicken tikka masala meals. The exploratory secondary analysis cannot establish causality, but it challenges the assumption that drinking water during a meal necessarily curbs eating.

20 Jul 2026

Semaglutide vs. liraglutide: Head-to-head study reveals a diabetes risk difference

Researchers compared semaglutide with liraglutide in 57,456 insured adults without recorded diabetes or cardiovascular disease who initiated formulations indicated for chronic weight management. Semaglutide users had a lower risk of incident diabetes, particularly beyond six months of follow-up, but limited cardiovascular events prevented a precise comparison of cardiovascular risk.

20 Jul 2026

GLP-1 weight-loss drugs may also reduce binge eating

Research indicates GLP-1RAs may effectively reduce binge eating severity, offering a complementary approach to existing psychological therapies for obesity.

20 Jul 2026

Filtered coffee links to slower biological aging while instant coffee shows the opposite

Filtered coffee consumption was associated with slower biological aging, while instant coffee was linked to faster aging in UK Biobank participants. The cross-sectional findings do not prove causation, but they suggest that brewing method may influence coffee’s relationship with aging biomarkers.

20 Jul 2026

Vitamin D falls short as an add-on treatment for endometriosis

An eight-week randomized trial of 66 women found that adjunctive vitamin D did not significantly or meaningfully improve endometriosis pain or quality of life compared with placebo during dienogest therapy. The results do not support routine short-term adjunctive supplementation, although the brief trial and absence of post-treatment vitamin D measurements leave longer-term effects uncertain.

19 Jul 2026