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?

What can you do to firm up flabby arms and slim down fat feet? How do you know if you?re injured ? or just really sore? Smart Fitness answers your workout queries.

Water aerobics may help reduce the pain of childbirth. A new study shows that women who take classes during pregnancy are significantly less likely to ask for pain medication during delivery.

The current U.S. shortage of childhood Hib vaccine, cut off in December 2007, will continue at least until mid-2009, the CDC warns.

If you're in a bad mood, all you see is the task at hand. But in a good mood, you can see how the task fits into the grand scheme of things in your life.

After learning complex skills, people perform those skills better after a night's sleep, a study using video games shows.