Analyzing a dysfunction that affects nearly half of all men in the United States between the ages of40 and 70, this study presents the most current information on erectile dysfunction (ED). Confronting the all-too-popular conception that ED is an isolated problem, this overview reveals that erectile dysfunction can in fact be a symptom of underlying cardiovascular disease. Based on20 years of medical experience, this investigation explains the importance ofa proper evaluation, depending on specific symptoms. Ideal treatments are also covered, including Viagra, Levitra, Cialis, penile injections and implants, testosterone gels, intraurethral medications, vacuum pumps, and constriction rings.