Why is sleep so important for the mind and body?

Sleep affects almost every aspect of our physiology, says Michael Timothy Smith, MA, PhD, director of the Behavioral Sleep Medicine Program at Johns Hopkins University. Watch this HealthMakers video to learn how the body "tunes up" during sleep.

Learn how to feel energized after lunch—without coffee.

Why red blood cells are so important, and how these cells are affected by sickle cell disease.

A look at the early symptoms of ATTR peripheral neuropathy and ATTR cardiomyopathy.

Treatment for CIDP typically involves a multidisciplinary approach and multiple healthcare providers.

Do women really need more sleep than men? How much sleep is enough? Find answers to these common sleep health questions.