This video provides a good understanding of erectile dysfunction. It describes its risk factors, and the various treatment options for ED. 00:00 Video Introduction 00:46 Definition & Erection Physiology 02:26 Risk Factors 03:46 Treatment Options 05:02 PDE-5 Inhibitors 06:41 Intracavernosal Injections 08:30 Vaccum Erection Device & Prosthesis 11:10 Summary