Practicing martial arts is a very physical thing, so there is an ancient saying that it is difficult for ordinary people to practice martial arts, so those taboos about practicing martial arts are guesses and speculations, and there is not much factual basis.
To practice martial arts, you should lay a good foundation from an early age and constantly enhance your physical function. A master must concentrate. Premature contact between husband and wife is easy to kill one's spirit, which makes martial arts practitioners unable to concentrate on practicing martial arts. Therefore, many martial arts experts will advise disciples not to get involved in this matter too early, but it is definitely not abstinence, otherwise the martial artists will become extinct!
In ancient China, there were many combinations of witchcraft martial arts and religion, which gave birth to many unique martial arts schools, such as Tai Ji Chuan based on Taoism and Bagua Palm, and Zen martial arts based on Buddhism. Many religions have some rules and regulations, so people combine these with martial arts to persuade martial arts practitioners to keep their integrity.
Ancient people got married early, which may make their health worse after personnel. According to the Taoist health theory, too frequent sexual intercourse is very harmful to people, and even a little extreme Taoism says that "28 beauties are as crisp as their bodies, and their waists are full of swords." These ideas are reasonable in some cases, but generally there is no scientific basis.
With the spread of vernacular novels among the people, people yearn for martial arts and combine it with religious worship. Therefore, China's martial arts legends are close to fairy tales, and people combine various theories to form some seemingly correct theories, but these theories only exist in supernatural novels, but few people follow them in reality.
Cultivating immortals has always occupied a very important position in the consciousness of Chinese people, especially in ancient times. But immortality is just an illusory pursuit, which many people who have heard of have never seen, and martial arts is also a part of legend. The analysis of many of its contents is fictitious, not real and does not exist.
Modern people have this kind of cognition because both modern martial arts novels and Xian Xia's novels emphasize this point, which is set by modern writers in order to increase the mystery of their works or meet the needs of stories. It is an exaggerated artistic technique, and there is no record of relevant content in history. Just listen and don't take these things seriously.