Refractory period (sex) autonomic feedback mechanism, rather than through central chemicals like oxytocin, serotonin, and prolactin. Autonomic feedback is already known to regulate other physiologic systems, such as breathing, blood pressure, and gut motility. This theory suggests that after male ejaculation, decreased wall tension in structures such as the seminal vesicles leads to a change in the fine autonomic signals sent from these organs, effectively creating a negative feedback loop. Such a mechanism is similar to decreased gastric and bowel motility once gastric contents have passed through. Once the feedback loop has been created, the refractory period remains until the loop is broken
Birthing chair support her. Often the arms of the chair have hand holds or arm rests for the mother to grip, providing extra leverage. Birthing chairs are usually 8 to 10 inches (20.32 centimeters- 25.4 centimeters) off the ground specifically to allow laboring women to brace their feet against the ground to help in pushing. The birthing chair has been used for millennia. Birthing chairs took the place of laboring mothers sitting on birth attendant’s laps, as it was the previous practice. These chairs were used before male physicians dominated the delivery room. The use of the birthing chair or similar devices