Men, do you know your penis?

　　a lot of male to one's own physiology common sense They all only know one but not the other. They only know some things one-sidedly and don’t know the others at all. Below we introduce the physiological mystery of the male penis.

　　However, it is difficult to find an explanation for how these three characteristics of the human penis are obtained. We can only demonstrate the biological perfection of the human penis with these three characteristics. If the human penis still retains the baculum that must have existed in the penis of our primate ancestors, then do the guys from the east, west, north and south still need to work so hard to be "big" and "strong"?

　　This question actually demonstrates the evolutionary necessity of the disappearance of the baculum of human ancestors. Positively speaking, it should be something like this: Human male sexual activity has shown an intensification trend during evolution, breaking a certain physiological balance and requiring certain physiological restrictions. The disappearance of the baculum enforces this necessary physiological restriction. How wonderful is the wisdom of the body!

　　The penis bone "disappears" and is replaced by the corpora cavernosa, the most amazing tissue in the human body. It is as hard as bone and as soft as flesh. There are jokes in China and foreign countries where women argue about whether men’s things have bones or not, so I won’t go into details here.

　　In monkeys with a penis bone, the erection of the penis appears as it comes out of the penis sheath. The human penis, which has no penile bone but has a corpus cavernosum, is always outside the body. Its erection is characterized by thickening and lengthening. It does not stretch after erection and must be driven by whole-body movements. In addition, human sexual intercourse is face-to-face, with the man pressing his whole body on the woman. The relative amount of movement of human men during sexual intercourse is the largest among all animals. human female The pressure received from men during sexual intercourse is not static pressure, but dynamic pressure. No wonder it has the effect of flattening the female chest.

　　The wonderful characteristics of the corpus cavernosum of the penis, which is as hard as bone and as soft as flesh, not only ensure the smooth realization of the physiological functions of the penis, but also effectively perform the "sacred mission" of preventing men from using greater physical strength during sexual intercourse. Because the corpus cavernosum of the penis causes men to abruptly stop sexual intercourse after reaching orgasm. No matter how much he had desires every day, the tiny corpus cavernosum of his penis turned into an adou who couldn't be lifted up, and no one could do anything about it. The corpus cavernosum is also like Xie An of the Eastern Jin Dynasty. After his glory, he "retired after his success"; when the time is right, he "rises from the top", and so on (Xie An is a rare smart man in Chinese history and is Li Bai's idol). The interval between two erections of the penis is called the "refractory period" in sexology. After puberty, the refractory period tends to extend. In other words, male sexual intercourse ability shows a decreasing trend after puberty. A 40-year-old father's sexual ability is far inferior to that of his 16-year-old son.

　　In unit time, under natural conditions, the number of penile erections an adult man may have is fixed, while the number of sexual intercourses an adult woman may receive is far more than the number of times a man can have it. In specific sexual intercourse activities, men only need to ejaculation , reaches orgasm, and a woman must be fully stimulated to reach orgasm. From the two perspectives of the number of sexual intercourses per unit time and the degree of satisfaction of each sexual intercourse, a man's sexual ability is far lower than a woman's sexual potential. Impotence is both a man's disease and a woman's disease. Premature ejaculation It's not a men's disease, but a woman's disease, because even if it only moves once, as long as a man releases his orgasm, he will reach orgasm. But women are never satisfied.