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.

Ritalin, Adderall, and Concerta do not appear to cause genetic damage in children who take them for attention deficit hyperactivity disorder (ADHD), a new government-funded study concludes.

Genetic screening can help identify people at risk for type 2 diabetes, but it adds little to traditional methods for determining risk, two new studies show.

Daily physical exercise begun no later than middle age fights age-related brain decline, mouse studies suggest.

Doctors in Europe have performed the first trachea transplant that hinges on the patient's own stem cells.