Orgasm men are capable of achieving them is supported by men who have reported having multiple, consecutive orgasms, particularly without ejaculation. Males who experience dry orgasms can often produce multiple orgasms, as the refractory period is reduced. An increased infusion of the hormone oxytocin during ejaculation is believed to be chiefly responsible for the refractory period, and the amount by which oxytocin is increased may affect the length of each refractory period. Another chemical which is considered to be responsible for the male refractory period is prolactin, which represses dopamine, which is responsible for sexual arousal. Because of this, there is
Birthing chair for women to lie on during delivery. A woman giving birth in the upright position has been seen in Asian, African, Pacific Islander, and Native American art. The concept of the birthing chair has also been written in observations by anthropologist as well as missionaries. As of the 1980s the birthing chair has been making a comeback in the modern medicine of childbirth. Some expecting mothers have reverted to the birthing chair for its upright position because it allows gravity to assist in the expulsion of the baby. Studies have shown that the birthing chair speeds up the time of