Studies show that if you want to live a long and healthy life, you need to start exercising. But what if the exercise is hurting you? A recent study examined three new cases of rhabdomyolysis, or rhabdo for short, that developed as a result of intense physical exercise. Rhabdo is a condition that occurs when the muscles in the body break down and release proteins and enzymes into the bloodstream. “Many cases of exertional rhabdomyolysis can be mild,” says Dr. David Geier, an orthopedic surgeon and sports medicine specialist in Charleston, South Carolina.