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A simpler way to rank heart transplant patients could save lives

A validated mortality score outperformed the current six-status system, potentially reshaping US donor heart allocation and prioritizing sicker patients.

13 Nov 2026

Aging reduces the brain's waste-flushing process during sleep

As people age, they may sleep for shorter periods and wake up more frequently during the night. In addition to those disruptions, MIT researchers have now discovered that a process responsible for flushing waste from the brain during sleep is commonly impaired in older people.

13 Nov 2026

Human heart tissue model offers insights into inherited cardiomyopathy

Inherited cardiomyopathies - diseases of the heart muscle, which cause the heart to have a harder time pumping blood to the rest of the body - are the leading cause of heart failure in young adults.

12 Nov 2026

A 43-gram sugar gap separates adults who check food labels from those who rarely do

A nationally representative US study of 9,416 children and adults found that frequent nutrition label users consumed an average of 42.8 g less added sugar daily among adults and 14.5 g less among children compared with infrequent users. The findings suggest an association between checking nutrition labels and lower added sugar intake, although the observational study could not establish causation.

12 Nov 2026

A study of 844,000 adults reveals what BMI misses about obesity

A multinational study of 844,108 adults found that combining BMI with waist measurements improved obesity classification and identified mortality risks that BMI alone could miss. Clinical obesity was associated with a 69% higher all-cause mortality hazard, compared with 19% for preclinical obesity, while most participants with preclinical obesity were not estimated to progress to clinical obesity during long-term follow-up.

12 Nov 2026

Biologic drug offers promising protection against alpha-gal syndrome

The summer of 2026 was a particularly bad season for ticks. And with it came a rising number of cases of alpha-gal syndrome (AGS) thanks to bites from the Lone Star Tick.

12 Nov 2026

Muscle benefits of lifting weights while taking tirzepatide

Resistance training alongside tirzepatide helped adults with obesity retain more lean tissue and gain strength without reducing weight-loss benefits.

12 Nov 2026

Vaping frequency linked to declining lung function in young adults

Long term vaping in young people may induce persistent changes in lung function, suggest preliminary findings published online in the journal Tobacco Control.

11 Nov 2026

Yogurt and cheese are rich in protein, but do they help aging muscles?

In a cross-sectional analysis of 6,790 adults aged 50 and older across two Irish cohorts, researchers found no consistent association between fermented dairy consumption and muscle strength, physical function, or frailty after accounting for lifestyle and socioeconomic factors. Although one analysis linked higher fermented dairy intake to greater odds of low grip strength, other findings did not support this association, and the researchers emphasized the need for further studies to establish whether fermented dairy influences healthy muscle aging.

11 Nov 2026

Exercise benefits people with chronic disease, but does the type matter?

A meta-analysis of 48 studies found that physical activity improved several chronic disease-related health indicators, particularly blood pressure, heart rate, and cardiorespiratory fitness, with significant benefits among people with hypertension and diabetes. Aerobic exercise had the strongest statistical evidence in the primary analysis, but no exercise type proved superior, and substantial variation between studies limited the certainty of the findings.

11 Nov 2026

Prenatal cannabis use disorder linked to higher postpartum psychiatric emergency visits

Women diagnosed with cannabis use disorder during pregnancy were more likely to end up in an emergency room for a psychiatric problem in the year after giving birth, according to a study of more than 2 million California deliveries.

11 Nov 2026

Cataract surgery boosts work, income, and food security in Mozambique

Two studies from rural Mozambique suggest cataract surgery is associated with benefits well beyond restored sight, including gains in quality of life, work participation, food and income security.

11 Nov 2026

Wildlife imports linked to increased risk of zoonotic disease outbreaks

The 21st-century epidemics of animal-human diseases, or zoonotic pathogens, such as MERS, SARS, and Covid-19, have demonstrated how pathogen spillover from animal to human can pose a global health threat.

10 Nov 2026

Subtle changes in deep sleep before Alzheimer's symptoms appear

The study identifies slow-wave sleep alterations as potential biomarkers for Alzheimer's, emphasizing their role in cognitive health and disease progression.

10 Nov 2026

Common blood pressure drugs may improve ulcerative colitis therapy

A class of blood pressure medications may improve a widely used treatment for ulcerative colitis, the most common type of inflammatory bowel disease, suggests a new study, led by Northwestern Medicine and Kiel University in Germany, of thousands of patients with the disease.

10 Nov 2026

Tobacco use independently linked to anorectal sensorimotor dysfunction and fecal incontinence

Tobacco use is independently associated with anorectal sensorimotor dysfunction and fecal incontinence, according to a recent study published ahead of print in The American Journal of Gastroenterology.

10 Nov 2026

A weight-loss drug eased knee arthritis pain in two major trials

Retatrutide effectively alleviates knee pain and enhances mobility in obese osteoarthritis patients, but long-term safety and joint health remain uncertain.

10 Nov 2026

Your Instagram photos may reveal more about loneliness than you think

Researchers analyzing Instagram data from 415 US college students found that photographs, language, and online activity provided moderately useful indicators of subjective loneliness but were less informative about social isolation. Social loneliness was associated with lower interpersonal engagement, while emotional loneliness was linked to negative language, sad or angry facial expressions in profile photographs, and late-night posting.

9 Nov 2026

Monthly binge drinking increases advanced liver fibrosis risk in women

Women who consume four or more alcohol drinks on a single occasion once a month or more have increased odds of advanced liver fibrosis, a new study suggests.

9 Nov 2026

Can Instagram-worthy healthy food compete with tempting fast food photos?

In a study of 203 Indian adolescents, researchers found that visually appealing Instagram images of healthy foods were significantly associated with a greater willingness to eat them, particularly for millet and pulse dishes. Although participants reported generally favorable attitudes and intentions toward healthy foods, most changes in eating behavior were not statistically significant, and nutritional captions provided no measurable additional benefit.

8 Nov 2026