Research is starting to show that some surprisingly simple positive reinforcements ? quick e-mail messages and short phone calls ? can motivate people to get moving.

Sloppy teaching and growing numbers of overly competitive students are giving yoga lovers serious and scary injuries: slipped disks, torn tendons, even strokes.

Can sex impair athletic performance? And are forced repetitions really necessary? Smart Fitness answers your workout questions.

Dara Torres jokes that she had trouble reading the scoreboard after winning the first of two events at the Olympic swimming trials.

Family history is a much poorer predictor of early breast cancer risk than most women realize, say researchers whose latest study argues against using family history alone to determine a young woman's risk for the disease.

Viagra, often prescribed to help men's erectile dysfunction, also helps women who experience sexual problems linked with their antidepressant use, according to a new study.

A new study finds that a A new study shows that a numbing gel eases pain associated with getting a mammogram and may make women more likely to return for subsequent screenings.gel eases pain associated with getting a mammogram and may make women more likely to return for subsequent screenings.

Heart disease may be tied to poorer mental performance as early as middle age, a British study shows.

A new treatment for a cause of male infertility may reduce the need for surgery and increase couples? chances of becoming pregnant.