Diseases and Disorders

Heart disease causes 40% of U.S. deaths, more than all cancers combined. Learn more important heart disease facts, including causes, symptoms, and much more.

Originating in China, the Black Death arrived in Europe with a deadly vengeance. Learn how the pandemic disrupted the known world in Black Death facts.

Without cholesterol, all the contents of our cells would ooze out. Discover how vital this molecule is to life and health with our fun cholesterol facts.

Over 40 million people are living with AIDS around the world. Learn more about this important global health issue with our interesting HIV/AIDs facts.

We spend twenty-five years of lives asleep. What are our minds and bodies doing during this huge chunk of our lives? Find out with our fun sleep facts!