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
Hormone replacement therapy Hormone replacement therapy Hormone replacement therapy (HRT), also known as menopausal hormone therapy (MHT) or postmenopausal hormone therapy (PHT, PMHT), is a form of hormone therapy which is used to treat symptoms associated with menopause in women. These symptoms can include hot flashes, vaginal atrophy and dryness, and bone loss, among others, and are caused by diminished levels of sex hormones in the menopausal period. The main hormonal medications used in HRT for menopausal symptoms are estrogens and progestogens. A progestogen is usually used in combination with an estrogen in women with intact uteruses because unopposed estrogen therapy is associated