Erectile Dysfunction, or E.D., is a condition affecting a man’s ability to achieve and sustain an erection during sexual intercourse. E.D. is common, affecting as many as half of all men aged 40 and older. Though the condition itself is not considered dangerous, E.D. is associated with systematic vascular disease, heart conditions, renal failure, prostate cancer, depression, and other more serious conditions. Thus, experts generally recommend that men suffering from Erectile Dysfunction consult with a medical professional for treatment.