From the historical records, we can see that it first appeared in the Han Dynasty and has a very close relationship with Taoism. In the early days of Taoism in Shi Tian, there was a common ceremony and custom of combining men and women, which gradually disappeared after the Six Dynasties. Occasionally trying to exercise will not have any negative effects on the human body, so don't be too indulgent.
"Han Shu Yi Wen Zhi" said: "If you are happy and have a festival, you will live in peace. If fans pay attention, you will die of sects." Taoism emphasizes health preservation and advocates extensive inheritance, so Taoism advocates this technique. I think we can love essence and seek to "replenish essence and brain".