Driven by vanity, every man hopes that he can fight more and more bravely, fighting ten rounds a night, but unless you are a young man in his teens or twenties, the older you get, the harder it is to get back to the past The courage of the time. Here are some natural sex skills, which may really make you invulnerable and die every night. But the first thing you need to understand is that men can have two manifestations of fighting and fighting, one is a long duration, and the other is a short refractory period (the time required for a second erection).
In sexual life, there are eight practices that can benefit one's essence, and seven practices that can damage one's essence. This is the "seven losses and eight benefits" in the so-called sexual intercourse regimen in ancient times. "Seven losses and eight benefits" are various sexual health care measures and sexual taboo experiences summed up by the ancients in the process of room health preservation. The following mainly introduces the various principles, movements, postures and precautions of couples during sexual intercourse in ancient books, including ten Xiu, ten festivals, eight contemplations, five desires, five sounds, seven losses and eight benefits, etc.