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.

What's standing between you and a hot body? Boredom? Lack of motivation? Too little time? Chances are, you're in an exercise rut. Try these techniques for amazing results.

She wasn't always been a runner. Cancer turned her into one.

Here are some of the best gadgets in a whole new wave of digital fitness products that use computer games, iPods and social networking applications to help you in your quest for a healthier physique.

Here are five ways to help the environment — and get in some exercise.

The new physical activity guidelines released last week by the federal government are aimed at keeping Americans healthy — but what if you also want to be buff?