If you can?t fit in your full exercise routine, squeezing in a mini workout that burns just 100 calories can help counter those holiday cookies and cocktails.

Many women recoil at the thought of baring their arms in sleeveless dresses or blouses, but not Michelle Obama ? half of the fabulously fit new first couple.

Psychologists say our ?self talk? or ?internal dialogue? can make or break a fitness routine. The problem is that many people simply aren?t aware of how destructive their thoughts are.

Insults aside, this is a tale of an unlikely friendship that saved a life. It kept a boss from giving up  on a man he considered not only a business investment, but a personal challenge.

Running a marathon puts severe and sometimes dangerous stress on your body. Why do so many people still want to do it?

A new study shows that drivers make more mistakes when talking on cell phones than they do when talking to other passengers.

Doctors should routinely offer all their patients over age 13 a blood test to screen for the HIV virus that causes AIDS, the American College of Physicians urges in new guidelines.

Newer CT scans are pretty good at detecting clogs in arteries -- but they aren't ready for prime time, a new study suggests.

The FDA has reportedly found tiny, "trace" amounts of toxic melamine in some U.S. brands of powdered infant formula. Experts tell WebMD there's little if any cause for concern.