A 46-year-old man with a history of diabetes and hyperlipidemia presents to his primary care provider for a routine physical ...

Most animals, including humans, carry an internal lunar clock, tuned to the 29.5-day rhythm of the Moon. It guides sleep, ...

When you fly across multiple time zones, an unwelcome greeter may be waiting for you at the airport that can rob you of sleep, upset your stomach and generally make you feel out of sorts: jet ...

If you can usually finish a run with ease, but are suddenly hit with severe fatigue, it could be a subtle sign of an ...