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?

The angst of adolescence has propelled disturbed teens to graduate from self-cutting to a more severe form of self-injury in which they literally jam paper clips, stables, pencil lead, and other objects into their body, researchers say.

Virtual colonoscopy -- colon cancer screening via CT scans -- can also be used to screen people for the bone disorder osteoporosis, researchers report.

A new study shows that brand-name drugs that treat heart disease aren't better than their FDA-approved generic equivalents.

Speed. That's the top reason nearly 600 adults and teens cited for frequently eating fast food in a new study. Nutrition and fun ranked last.