Many men often say how many times they can get an erection in one night, and think that the more times they repeat sexual intercourse in one sex, the stronger their sexual function is, and are proud of it. Even some health products are also promoting the function of being able to “open the second degree”, which is actually a misconception. The director of urology at the PLA 305 Hospital, Zhang Yipeng, said that men have a period of sexual life protection system, that is, 20 to 30 minutes after ejaculation, the penis will not erect again. In the period of inactivity, the male sexual system function will be restored, and the period of inactivity forced to increase sexual stimulation, forcing themselves to have sex again will lead to sexual system overload, which is not conducive to the recovery of the sexual system, long-term will be easy to produce sexual function damage. In fact, sex is the sexual energy “release” process, young people because of the strong body, sexual function in the period of prosperity, the body accumulation of sexual energy is relatively more, a one-time life may not release energy clean, the period of inactivity is relatively short, therefore, young people repeat multiple sexual intercourse, belongs to the normal situation. And the older people have a relatively long period of inactivity, the accumulated sexual energy is also less. In a single life, the energy has been fully “released”, the body will not have the need to have sex again, the most important thing is to rest and restore the sexual system, so it is best not to repeat sex again. In the clinic, many patients with premature ejaculation, in order to “compensate” for their deficiencies, often forcibly stimulate the sexual organs, repeated sexual intercourse, which greatly increases the burden on the sexual system, long-term, the body is to carry out “resistance”, if not get the right If you do not get the right guidance, treatment, so that the sexual organs “overload” work, will lead to impotence. The actual fact is that it is possible to get the accumulated sexual energy to be completely “released”, which is a virtuous and high quality sex life, and simply pursuing the number of intercourse is not scientific.