Sexual activity can alleviate menstrual pain. The reason sexual activity can alleviate menstrual pain to some extent is that during the process of enjoying sex, the excitement of the cerebral cortex and the pleasurable sensations from the nervous system guide our body, thereby releasing some well-known hormones and chemicals. Having sexual activity a few days before the onset of menstruation can create a reserve of mental pleasure, putting the body in a relaxed state. This releases the muscle tension associated with the habitual fear of menstruation, so the pain during menstruation will not be as pronounced. Furthermore, sexual activity can promote indirect movement of the uterus, thereby regulating the flow of Qi and blood and improving the circulation of Qi and blood.