Don't be afraid to question your doctor and ask, "Do I really need that?"

Michael Lee knew he was still in bad shape when he left the hospital five days after emergency heart surgery. But he was so eager to escape the constant prodding and the roommate's loud TV that he tuned out the nurses' care instructions.

More than 1 million Americans wind up back in the hospital only weeks after they left for reasons that could have been prevented a revolving door that for years has seemed impossible to slow. Now Medicare has begun punishing hospitals with hefty fines if they have too many readmissions,...

Death rates from cancer are continuing to inch down, researchers reported Monday.

A new poll suggests few Americans realize the links between too much weight and health issues.

We know obesity is a health crisis, or every new year wouldn't start with resolutions to eat better and get off the couch. But don't try taking away our junk food.

In an ambitious road map for slashing the global spread of AIDS, the Obama administration says treating people sooner and more rapid expansion of other proven tools could help even the hardest-hit countries begin turning the tide of the epidemic over the next three to five years.

There's a new push to make testing for the AIDS virus as common as cholesterol checks.