biology

  • Exercise Can Boost Brain Health Even in People Who Already Have Signs of Dementia

    Exercise Can Boost Brain Health Even in People Who Already Have Signs of Dementia

    New research adds to evidence that exercise can improve cognition, especially later in life. The study found that older people who regularly exercised had greater levels of proteins crucial to their brain’s health, compared to those who didn’t exercise. These differences were apparent even in people whose brains otherwise showed possible signs of dementia, suggesting…


  • First Omicron Death in U.S. Reported in Texas

    First Omicron Death in U.S. Reported in Texas

    U.S. health officials have reported the country’s first death attributed to the Omicron variant of the coronavirus — a man in his 50s from Texas. The man was unvaccinated but had previously survived a covid-19 infection; he also had underlying health conditions.