What don't we know about the brain?

A major gap in our knowledge of the brain is how it processes information. Learn what else we don’t know about the brain of Sri Sarma, PhD, biomedical engineer and Johns Hopkins University professor.

Learn five fascinating facts about your brain, plus how to slow down brain decline.

Seasonal affective disorder can occur in the spring and summer as well as the fall and winter.

Learn what increases the odds that you or a loved one will experience major depressive disorder.

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.