I don't have any back problems, but almost everyone in my family does. What exercises can I do to keep my back healthy?

Exercises to strengthen your abdomen and trunk muscles can help prevent back problems. You also need to make sure that you use good posture in all your activities--no slouching or "freezing" your back in one position for long periods of time.

Overall conditioning is also important in keeping your spine healthy. You need aerobic exercise, such as swimming, cross-country skiing, walking, or aerobics classes. Pick something you enjoy so you keep doing it.