Impotence is the illness in which a man is unable to attain or maintain an erection sufficient for satisfactory completion of a chosen sensual activity. It is a common problem, distressing at least one in ten men across all ages in all countries. The problem...

Male sensual dysfunction has received growing national attention. The rates of sensual dysfunction in men are relatively high, and also these dysfunctions are often associated with a decrease in quality of life. Impotence is a very common sensual dysfunction in men and is the...