New findings from 350,000 people make the strongest case yet that exercise improves cognition. A small study shows it raises BDNF, a brain chemical

Bitcoin mines cash in on electricity—by devouring it, selling it, even turning it off—and they cause immense pollution

The red flags have been there for years. The world deserves much better than contaminated medicine and children poisoned by cough syrup

Experts often cite mistrust of the government as a key reason certain communities ‌have suffered disproportionately during deadly outbreaks

A growing number of scientists are reconsidering the dangers of prospecting for unknown viruses and conducting other high-stakes work with pathogens