A long, firm, and long-lasting erection is vital for sexual satisfaction and procreation. When a man is aroused, certain physical changes occur in his body. This includes increased blood circulation to the penis, making it long and firm. This erection is essential for penetrating the female sex organ, and friction between the male and the female organs leads to sexual pleasure. With age, general health weakens and there is decreased flow of blood to the penis. This results in no erection or Read More...