Physical activity is a vital part of a healthy life. While research has clearly shown its benefits in preventing heart disease, fitness may lower the risk of certain cancers as well.

When it comes to falls and fractures, an ounce of prevention really is worth a pound of cure. While supplements may improve older people's health, exercise remains the best way to boost strength and mobility and help prevent serious falls.

If you want your spouse to get in better shape, try lacing up your own shoes and heading to the gym. Your husband or wife may be quick to follow.

Exercise in your teens is a good thing, but even with exercise, poor ability to cope with stress may affect your heart later in life.

Exercise is almost never a bad thing, but new evidence suggests that not all exercise is created equal.

Knee pain — a sign of arthritis, related to obesity or just the result of getting older? Whatever the reason, diet and exercise might be able to prevent or reduce knee pain in overweight older adults with diabetes.

Older adults with reduced mobility may not move around a lot, but a little activity may go a long way in maintaining their heart health.

Many avid joggers feel guilty about taking days off from running. However, taking it easy may be healthier than going overboard.

January is the time for resolutions, and getting into shape is a good one for most people. You don't necessarily have to run a marathon, though — even a little exercise a day could help keep the doctor away.