What happens to memory during sleep?

Michael Timothy Smith, MA, PhD, director of the Behavioral Sleep Medicine Program at Johns Hopkins University, explains that while you sleep, your brain is busy sorting and connecting the day's memories.

Desmoid tumors are noncancerous and do not metastasize, but they can invade nearby tissues and structures.

Kids' migraines are more common than you think—but one type of therapy is offering hope.

Get the facts and learn ways to cope with this life-changing disease.

The relationship between sleep and heart health may be a two-way street. Here’s what you need to know to improve both.

Constant caffeine, skipped workouts and other perils of the late-night worker.