REM stands for rapid eye movement — a stage in the sleep cycle when your brain is almost as active as when you’re awake.

Have outer foot pain? Here are common causes of pain on the outer side of your foot, the symptoms to watch for, and how to treat it.

Vitamin B6 could help protect against cancer and cognitive decline. Learn more about the benefits of B6 and how to ...

Vitamin C is a water-soluble vitamin needed for essential body processes. The human body does not make or store vitamin C, ...

What's the buzz over NAD? Early science shows this trending supplement may help boost longevity. Here's what doctors say.