What Does Running A Marathon Do To Your Body? All exercise is good exercise, right? Maybe not. Researchers have found that running in excess could actually be bad for you. Facebook Prev Article Next Article Health Checkout these cool gadgets... Related Posts 2 Men HIV-Free After Bone-Marrow Cancer Treatments Soccer Players Gets Revived by Implanted Defibrillator Bionic Vision Baby Cured Of HIV, Say U.S Scientists The best way to sit at your desk at work Do Vitamins Really Improve Health?