In the 1980s, David Nieman, a young health science graduate researcher at Loma Linda University and an avid marathon runner, observed an intriguing pattern. “I had noticed, both in myself and in other ...

Experts are hoping the answer may be found in kids. As we continue to learn more about COVID-19, one question on many people’s minds is: Why do some people get sick and others stay healthy?

Working unconventional hours disrupts the body’s internal clock, which in turn affects the immune system and increases people ...

Why do some fit and healthy people get flattened by COVID while others recover quickly? We asked a virologist what really ...

Why do people get sick? Ask Robert F. Kennedy Jr., America’s highest-ranking public-health official, and he may chalk it up to their terrain. For centuries, doctors and scientists have agreed that ...