Health Library

Cystic fibrosis (CF) is an inherited, often fatal disease of the body's mucus glands. It affects about 30,000 children and young adults in the United States, most of them descendants of people from northern Europe. Find out more about CF by taking this quiz.

There isn't much good that can be said about smoking. Now, on a positive note, do you know how much money you can save if you quit smoking today?

Most people get an occasional bout of heartburn—that burning feeling in the chest about a half-hour after eating. But if you get it often, you may have GERD.

Diverticuli are herniations in the muscular layer of the colon that make small, saclike swellings. Diverticulitis occurs when diverticuli become inflamed and infected. This video looks at the possible causes of this condition, typical symptoms, and available treatments.