Under normal circumstances, when male sexual stimulation happens, the brain conveys a signal through the central nervous system and into the nerves of the penis.Thereafter, chemical messengers are released by nerve endings. They cause two chambers of spongy tissue that span the length of the penis to relax and become engorged with blood. This is what gives the organ rigidity.
Up to 80% of erectile dysfunction (ED) cases are caused by a lack of blood supply to the penis. Various ... Read more