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 delivery and increases comfort" for expecting mothers. The position of the birthing chair allows muscles(including vaginal and abdominal as well as those in the back, stomach, legs, and arms) used in childbirth to work to efficiency. Since the 1980s many hospitals have begun installing birthing chairs due to the large number of inquiries about them. A modern birthing chair/stool can be made of many different materials including PVC inflatables such as the CUB support, plastic such as the Kaya stool and padded wooden stools. More recently birthing chairs/stools have been made to accommodate several upright positions such as squatting, all