The first stage of the sexual response cycle is the excitement phase. During this phase men and women begin to feel aroused and experience vasocongestion and myotonia. Men experience an erection of the penis, an elevation of the testes, and a thickening of the skin surrounding the scrotum. Women experience a swelling of the vaginal tissue, the clitoris, the area surrounding the opening of the vagina, and an enlargement of the breasts. They also experience vaginal lubrication and an expansion and thickening of two thirds of the inner vaginal walls which also changes to a deeper color. Both men and women experience vasocongestion of the genital tissue, an increase in blood pressure, heart rate, and myotonia. Breathing becomes fast and heavy, like panting. Some people also experience the nipples becoming erect and their skin taking on a rosy sex flush color. Following the orgasmic phase is the resolution phase. This is the final phase of the sexual response cycle and is where the body returns to its unaroused state. During the resolution phase the penis and testes return to their normal size and men are physiologically unable to achieve another orgasm for some time, this is also known as the refractory period. Adolescent boy’s experience the refractory period for only minutes where men over the age of 50 may not be able be rearoused for up to a day. Unlike men, women do not experience a refractory period and can become rearoused and experience multiple orgasms from continues sexual stimulation. Men and women both return to their prearoused state if sexual stimulation stops. The swelling of the genital tissue and blood return to normal; muscles relax and both partners may feel relaxed and satisfied. While many people have active pleasurable sex lives there are numerous men and women whom experience sexual dysfunctions. Sexual dysfunctions are persistent, recurring problems in becoming sexually aroused or difficulty reaching orgasm. There are several types of common...