Erectile dysfunction , or ED, is defined by the inability to achieve and maintain an erection of the penis that can be used to accomplish sexual intercourse. Millions of men suffer from this condition at some point during their lives, and while it might be scary when you first notice symptoms, there are many ways to fix it and make your sex life fun again. Exercise can be a powerful tool in the battle against erectile dysfunction, whether you want to regain your ability to perform sexually or simply maintain your sexual health as you age. What is exercise good for? We know that exercise is good for your body, and we know that it can boost your mood. What if we told you that exercise could also be good for your sex life? Studies show that men who have trouble achieving an erection or maintaining one during intercourse might benefit from the physical effects of regular exercise. For example, in a study of obese men with erectile dysfunction, those who participated in a we...