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 Birthing chair A birthing chair, also known as a birth chair, is a device that is shaped to assist a woman in the physiological upright posture during childbirth. It is intended to provide balance and support. If backless, it is known as a birth stool. The early birthing chairs varied between having three or four legs, though three legged birthing chairs are most commonly seen. Both styles support the bottom of the women in labor and often have a slender, sloped back for comfort and to allow birthing assistants, who are positioned behind the mother in labor, to massage or