It's never too late to start exercising.

Want to live longer? Start exercising.

Think you're too old? Think again.

ven if you've been sedentary for some time, it's never too late to start an exercise program to increase your longevity. So says a study of about 10,000 women age 65 and older. Published in

The Journal of the American Medical Association, the study found that those women who increased their activity had lower death rates than those who stayed on the couch. Even women with a chronic disease fared better when they exercised. While there was less benefit for those 75 and older, it still appeared that exercise helped.

The message is this: It's never too late to take the exercise prescription. Ask your doctor if it's OK for you to exercise. If so, work with the doctor to find a program that will help you thrive.