6.Some people masturbate by using machines that simulate intercourse.
Men and women may masturbate until they are close to orgasm, stop for a while to reduce excitement, and then resume masturbating. They may repeat this cycle multiple times. This "stop and go" build up can achieve even stronger orgasms.
Rarely, people quit stimulation just before orgasm to retain the heightened energy that normally comes down after orgasm[8] due to the release of prolactin hormone. Doing this could lead to temporary discomfort due to pelvic congestion.
Austrian psychoanalyst Wilhelm Reich in his 1922 essay Concerning Specific Forms of Masturbation tried to identify "healthy" and "unhealthy" forms of masturbation. He tried to relate the way people masturbated to their degree of inclination towards the opposite sex and to their psycho-sexual pathologies.
