"In the theory of traditional Chinese medicine, the gastrointestinal tract belongs to the six fu organs, and it is necessary to' open it and use it' and' drain it without hiding it', which is similar to the pursuit of' if you want to live forever, your intestines will always be clear; There are similarities in' if you don't die, you will have no residue in your intestines'. "Zhou Daihan said, however, the real way to break the valley needs to cooperate with some professional cultivation methods to adjust the metabolism to a lower level, so as to reduce the burden on the gastrointestinal tract and let it rest. This is what a "professional" can achieve after long-term exercise. However, modern people who are eager to lose weight will simply and rudely use the concept of "breaking the valley" and even use water, detergent or Chinese herbal medicine to "wash the intestines" to diet. These are all wrong practices.

In fact, from Taoism to Chinese medicine, they all pay attention to the overall balance of yin and yang. Su Wen in Huangdi Neijing mentioned that the correct way to preserve one's health should be "living in skills, eating properly, living regularly, and not acting rashly." However, in modern living conditions, it is not advisable to break food at will.