Refractory period (sex) for treating sexual dysfunction. Sildenafil, used in the treatment of erectile dysfunction, was found in one scientific study to have caused "a decreased postejaculatory erectile refractory time (3.2 ± 0.7 vs. 6.4 ± 0.7 minutes)" in men diagnosed with premature ejaculation. It is additionally proposed that the gonadotropin inhibitory hormone (GnIH), which is considered to inhibit the hypothalamic-pituitary-gonadal axis and sexual functions causes refractoriness of the post-ejaculatory refractory period. This hypothesis also supports the increase of oxytocin and prolactin after orgasm in accordance with the previous studies. One alternative theory explains the male refractory period in terms of a peripheral
Birthing chair fours, kneeling and sitting, and are used as supports not necessarily as chairs or stools. Research suggests that being upright during labour can have many positive benefits for mother and baby. Using a modern-day birthing chair/stool/support can aid a woman in having an upright birth. Line 1 from 1.1 to 1.10 photographs show mother alone on birth-chair (with bowl beneath seat opening to catch amniotic fluid) and with support from partner respectively and photograph 5.5 shows a wooden birthing chair with foot supports. Birthing chair A birthing chair, also known as a birth chair, is a device that is shaped