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Signs That Exercise Is Actually Hurting Your Health

Dangers of overtraining + recovery tips

person kneeling on gym floor while hanging head and gripping a barbell

When you exercise, do you push through the pain? To get stronger, we often set (and re-set) goals involving reps, drills, miles or minutes that can sometimes push us past our limits.


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But sometimes, the muscle soreness lingers. You’re exhausted. You just need to push yourself harder, right? Wrong. It’s possible you’re exercising too much. Yes, as the adage goes, too much of a good thing can be bad for you.

“Anybody can be at risk for over-exercising, not just athletes,” says Caitlin Lewis, MD, sports medicine physician.

She outlines symptoms of over-exercising and what to do about them.

Why we sometimes push too hard with exercise

Both men and women may enjoy a workout that is more rigorous than a typical exercise session.

You’re out on a pleasant autumn day and your run turns into a 10-miler instead of your usual five miles. The next day is nice too, and you feel pretty good, so you run another eight miles.

This can lead to what doctors call overreaching.

“It means too much exercise in a short period, which is very common and can occur quickly,” Dr. Lewis says.

Symptoms of overreaching include muscle soreness that lasts more than two days (sometimes muscles are swollen, red and warm to the touch). Also, watch out for injury, such as chronic tendinitis or a stress fracture.

What are the signs of overtraining?

Those who continuously push the limits when they exercise run into the more serious condition of overtraining.

This is more common among college athletes, triathletes, ultra-marathoners and other endurance athletes. But if you have a hectic, stressful life and don’t get enough sleep, you are also at risk.

“Sometimes overtraining happens to people who are just starting a program and do too much, too soon,” she says.

Signs of overtraining may include:

  1. A profound feeling of fatigue.
  2. Energy loss.
  3. Chronic colds, infections and other illnesses.
  4. Insomnia.
  5. Weight gain.
  6. Stamina decline.
  7. For women, a loss of their period (amenorrhea).

Athletes often think they need to train harder if they start gaining weight or if their running times decline or weightlifting loads plateau. “That may end up making the problem even worse,” Dr. Lewis says.

How to recover from too much exercise

Healing muscles that are sore from overreaching is usually fairly easy. Take a couple days off from exercising and the ache should go away.

“This is quickly correctable with rest,” Dr. Lewis says.


Recovering from overtraining is more difficult and can take at least six to eight weeks of rest.

“I recommend that people work together with their physician, as well as a personal coach or trainer, to gradually return to exercise when safe,” she says.

When you’re ready to resume exercise, a coach may suggest you build in recovery time by taking a day or two off from all exercise every week.

Also, depending on your training program and goals, it may help to cut your exercise by 50% to 80% for an entire week every four to six weeks.

“I think that’s the key thing often missed — an occasional reduction in training volume,” Dr. Lewis says.

Without treatment, overtraining can weaken your immune system and may cause osteoporosis and bone loss in women. In extreme cases, heart damage and rhythm disorders can occur. Those with genetic risk factors are especially vulnerable to cardiac problems from overtraining.

And, those who over train once are at risk for repeat episodes. “Working with an exercise or sports psychologist can help you avoid that,” Dr. Lewis advises.

If there’s a chance you’re exercising too much, it’s a good idea to see a doctor, physical therapist or personal trainer.

“The earlier we intervene, the shorter the recovery,” she says.


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