How Much Exercising Is Too Much?

My 15-year-old daughter has been exercising multiple times a day and it's beginning to take over her life. Can this be bad for her?
– Julie

Excessive exercising can indeed be detrimental to your daughter's health. Over-exercising, often associated with eating disorders, can lead to tendon, ligament, bone, cartilage, joint, and muscle damage — and even disruption of the menstrual cycle. Feeling a compulsive need to exercise and having intense feelings of guilt or anxiety over a missed workout are common signs in a teen who over-exercises.

If you think your daughter may be exercising excessively, talk to your doctor for advice. He or she can better evaluate the situation and help you and your daughter find the best way to deal with the situation.

Reviewed by: Larissa Hirsch, MD
Date reviewed: February 2010

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We regret that we can't reply to any email inquiry. Although we can't reply personally, you may see your question posted to this page in the future. If you're looking for medical advice, a diagnosis, or treatment, consult your doctor or other qualified medical professional. If this is an emergency, contact emergency services in your area.

Related Resources

American Academy of Child & Adolescent Psychiatry (AACAP) AACAP offers up-to-date information on child and adolescent development and issues.

American Council on Exercise (ACE) ACE promotes active, healthy lifestyles by setting certification and education standards for fitness instructors and through ongoing public education about the importance of exercise.

WomensHealth.gov Developed by the U.S. Office on Women's Health, 4woman offers reliable women's health information.

Compulsive Exercise Even though exercise has many positive benefits, too much can be harmful. Teens who exercise compulsively are at risk for both physical and psychological problems.

Fitness and Your 13- to 18-Year-Old Kids who enjoy exercise tend to stay active throughout their lives. Learn how to encourage fitness in your teen.

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