Health Library

Acute bronchitis refers to inflammation of the central airways that usually clears up within 4 to 8 weeks. Viral infections are the most common cause. This video explores other possible causes, available treatments, and steps you can take to prevent it.

Experts are increasingly urging people to know their BMI, a figure that takes into account not just weight but also height to indicate body fat.

The bladder is a hollow organ in your lower belly. Learn about its anatomy.

A closer look at the structure of the breast.

Putting babies to sleep on their backs has dramatically reduced the incidence of SIDS. One unexpected side effect: Many infants now have a flattened head.