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?

You can blame your energy crisis on a lack of shut-eye, but there may be other reasons you're slogging along like a turtle. Find out what's fueling your fatigue.

Get moving: The nation's new exercise guidelines set a minimum sweat allotment for good health. For most adults, that's 2 hours a week.

Do you always have to max out with weights? And will a week off from the gym wipe out your fitness gains? Smart Fitness answers your workout queries.

If you?re trying to shape up, there?s no shortage of exercise equipment and workouts promising to deliver bigger, better, faster results. But are they really all that?

Janet Jackson has a "rare form of migraine called vestibular migraine or migraine-associated vertigo," according to a statement released by her publicists.

Scientists at the University of Washington in Seattle report success in their first attempts to harness the brain to treat paralysis in people with spinal cord injuries.

Scientists looking for ways to help treat fatty livers have discovered that an ingredient in red wine can help protect from -- and possibly even be used to treat -- fat buildup in the liver that goes hand-in-hand with chronic alcohol use.

Vice President Dick Cheney will undergo an outpatient procedure to treat a recurrence of atrial fibrillation, an abnormal heart rhythm involving the upper chambers of the heart.