Receiving yin and nourishing yang is a Taoist cultivation method, which is also mentioned in martial arts novels. It is generally considered as a means to improve martial arts, but the actual effect cannot be scientifically confirmed.
The original meaning of Taoism is that men "value women without catharsis" and "count women without catharsis" Because "the climax of female sexual intercourse can strengthen the vitality of men, so men's sexual behavior should be prolonged as much as possible to achieve the purpose of collecting yin and replenishing yang."
Historically, the technique of collecting yin and nourishing yang was popular in some schools of Taoism, and it developed into the technique of "refining inner alchemy" after the Song Dynasty. Being attacked by Buddhism for a long time and criticized by many doctors is also considered as one of the important reasons for the decline of the ancient art of sexual intercourse in China.
Because it is impossible for people who practice this technique to live forever, they are easy to indulge in lust, which violates the basic principle of "having fun and being temperate" in sexual intercourse. Of course, "collecting yin and nourishing yang" is not applicable in modern people's sexual life.
"Catching Yin and nourishing Yang" is an important behavioral concept of China's ancient family surgery. It is believed that if men want to gain benefits and live a long life, even live forever, they can achieve their goals by consciously having sex with women.
The concept of "collecting yin to replenish yang" has existed for a long time, and it was clearly recorded in Ge Hong (the inner chapter of Bao Puzi) in the Jin Dynasty. "There are more than a dozen methods at home, either to treat strain, or to attack and cure many diseases, or to nourish yin and tonify yang, or to prolong life.