COVID-19 can affect the brain. New clues hint at how
April 27, 2021 at 6:00 am For more than a year now, scientists have been racing to understand how the mysterious new virus that causes COVID-19 damages not only our bodies, but also our brains. Early in the pandemic, some infected people noticed a curious symptom: the loss of smell. Reports of other brain-related symptoms followed: headaches, confusion, hallucinations and delirium. Some infections were accompanied by depression, anxiety and sleep problems. Recent studies suggest that leaky blood vessels and inflammation are somehow involved in these symptoms. But many basic questions remain u...