Advertisement
question

How much exercise is too much?

Dr. Michael Roizen, MD
Dr. Michael Roizen, MD
Internal Medicine
answer
Exercising is like nuts in at least one way—there is such a thing as too much of a good thing. While exercise has more plusses than a math workbook, you can take it too far: If you burn more than 6,500 calories a week with exercise (that's roughly 13 hours) or if you do more than two hours in a row of straight cardiovascular training. That overuse not only can stress your joints (depending on the exercise), but it also appears to be the level at which you induce too much oxidative stress in your body, and that decreases your longevity.
YOU: On A Diet Revised Edition: The Owner's Manual for Waist Management

More About this Book

YOU: On A Diet Revised Edition: The Owner's Manual for Waist Management

For the first time in our history, scientists are uncovering astounding medical evidence about dieting -- and why so many of us struggle with our weight and the size of our waists. Now researchers...
National Academy of Sports Medicine
National Academy of Sports Medicine
answer

There is no magic number of minutes that determines how much exercise is too much. It depends on many factors such as your age, weight, medical history, and fitness level. But current research clearly demonstrates that too much exercise may cause harmful effects known as overtraining syndrome.

Overtraining syndrome commonly occurs in athletes or fitness enthusiasts who are training beyond their body’s ability to recover. When an individual is performing excessive amounts of exercise without proper rest and recovery, there may be some harmful side effects. Some of these side effects may include decreased performance, fatigue, altered hormonal states, poor sleeping patterns (insomnia), reproductive disorders, decreased immunity, loss of appetite, mood disturbances, and a compulsive need to exercise.

To help avoid overtraining training be sure to eat a well-balanced diet and strive for a minimum of seven hours of sleep per night. A proper nutrition strategy coupled with adequate rest will help provide you the necessary nutrients and energy your body needs to maintain physical activity.

In addition, it is equally important to listen to your body. If you’re feeling rundown, take a short break from your typical exercise routine and treat yourself to some rest and relaxation.

Continue Learning about Fitness

4 Attitude Adjustments That Will Help You Actually Enjoy Exercise
4 Attitude Adjustments That Will Help You Actually Enjoy Exercise
Have you ever tried to encourage people to do something they hate—three times a week? I face that problem every day. Pressure doesn’t work. If you ha...
Read More
Learn How Exercise Can Help Boost Brain Health
Learn How Exercise Can Help Boost Brain Health
Whenever I'm trying to figure out a solution to a particularly difficult problem, my first instinct is to go for a walk, hop on my bike, or take off o...
Read More
What is an abdominal crunch?
An abdominal crunch tightens your abdominal muscles. Learn more from our contributors.
More Answers
Can I really boost calorie burning at rest?
Can I really boost calorie burning at rest? Yes, adding lean body mass through progressive resistanc...
More Answers

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.