Meridians are like a kind of spatial channel. “Meridians and channels are like paths and water networks that connect towns and villages throughout the body, linking the organs and tissues of the human body; qi and blood run in them, transporting nutrients and information, so meridians and channels are channels that run Therefore, the meridians are the channels that run the whole body, contact the internal organs and limbs, and communicate with the upper and lower parts of the table. It is very simple to understand that if the channels are not working, there will be many diseases naturally. As we often hear and mention the state of sub-health is a typical manifestation of meridian failure. The formation of Qi stagnation and blood stasis has a long process, which is related to many factors such as emotion, diet, age, environment and disease. For example: 1, emotional depression, nervousness, introverted personality, and buried in the heart if there is something unpleasant, which affects the flow of qi and blood; 2, addiction to greasy and sweet food, high blood lipids, or too salty diet, or insufficient water, can make the blood too sticky, resulting in the poor flow of qi and blood; 3, qi deficiency, yang deficiency physique, and the promotion function is reduced, resulting in the slow flow of qi and blood or stasis; 4, cold living environment, long-term vascular 5.Lack of exercise, weakened myocardial contraction, and slowed Qi and Blood flow; 6.Recent studies have found that various chronic inflammatory diseases cause local tissue depression, edema, adhesions, or the accumulation of pathological products in the local area, affecting Qi and Blood flow. Tendency to develop Qi stagnation and blood stasis, most of them have obvious characteristics of “non-circulation”. Examples include: intractable headache, depression, cerebral infarction, myocardial infarction, cholecystitis, intestinal dysfunction, lobular hyperplasia of the breast, dysmenorrhea, uterine fibroids, malignant tumors, etc. After a long period of medical practice, ancient and modern medical practitioners have put forward the view that “stagnation of qi and stagnation of blood will lead to all kinds of diseases”, which is based on practice. Medical research has confirmed that microcirculatory stasis is the basis for the pathogenesis of many diseases, and is also one of the reasons why chronic diseases remain untreated for a long time, so there is also the saying that “long-standing diseases must have stasis”.