Nearly 30 percent of U.S. outpatient opioid prescriptions may be written for no clear medical reason. Why?

Amid ongoing outbreaks, recent findings are yielding crucial insights into the best use of oral cholera vaccines.

A new study looks at how exercise may ward off the ill effects of Alzheimer's on the brain.

For more than a century, researchers have attempted to identify the fundamental building blocks of complex human arm and hand movements.