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A major international study tracking more than 26,000 men found that very low testosterone levels were associated with an 18% higher risk of dying from cancer later in life. Surprisingly, testosterone itself showed no clear link to prostate cancer, . ...

Scientists have discovered that sleep disorders are associated with structural changes in brain regions that control attention, decision-making, and emotions, potentially explaining why disrupted sleep can affect everyday thinking and behavior. The . ...

A surprising new study suggests that a stronger flu shot could offer older adults significantly greater protection against Alzheimer's disease. Researchers at UTHealth Houston analyzed nearly 200,000 adults ages 65 and older and found that those who ...

A study of more than 17,700 US adults found that people who use cannabis in multiple forms have dramatically higher rates of daily consumption and addiction symptoms than those who stick primarily to one method. Nearly 67% of those who used almost .. ...

Drinking two to three cups of caffeinated coffee daily was linked to a dramatically lower risk of dementia and better cognitive functioning in a study spanning up to 43 years. The benefits appeared regardless of genetic risk, but decaffeinated coffee ...

A surprising discovery reveals how psilocybin, the active compound in magic mushrooms, rapidly reshapes the brain by creating new neural connections and strengthening them. Researchers found that the drug behaves differently in healthy and ...

A compound naturally found in broccoli could help fight Friedreich ataxia, a devastating genetic disease that progressively damages the nervous system, by boosting a vital protein and protecting nerve cells. Scientists hope the discovery could lead . ...

A study of nearly 5,800 adults found that heart scans measuring calcium buildup in the arteries led to the same observed rate of major cardiovascular events as traditional risk assessments, despite recommending statins to far fewer patients. ...

Full-fat dairy may not be the health villain it has long been portrayed as, according to a new study finding that three daily servings did not worsen weight, cholesterol, or insulin resistance over 12 weeks. Researchers also observed improvements in ...

A surprising new study suggests that an anti-aging drug could help protect people genetically predisposed to Alzheimer's disease. Researchers found that just four weeks of low-dose rapamycin improved brain blood flow in healthy middle-aged adults ...