Meridian theory plays a very important role in China's traditional health preserving theory, and traditional health preserving experts in China also attach great importance to the function of meridians on human body. Neijing once wrote: "Those who have meridians can decide life and death, cure all diseases and regulate excess and deficiency." Here, the meridians are almost promoted to an extremely important position that can decide life and death and regulate excess and deficiency. Obviously, the significance of meridians for health preservation is self-evident. With the improvement of social economy, people are now more concerned about the prevention of diseases. The opening of various meridian health stores on the street has given me a stronger visual impact on this kind of health. As I am a nurse, I am also interested in health care methods and have taken me to enjoy the most natural health care methods many times. What makes me feel different most is soaking my feet. At first, my heart was full of all kinds of tension, itching, pain and so on. But when washing feet becomes a habit, it fills me with great expectations every time. Chinese medicine believes that the internal organs of the human body have corresponding acupoints on the feet. Foot is the starting point of Yin San Meridian of Foot and the end point of Sanyang Meridian of Foot. There are more than 60 acupoints below ankle joint. Medical classics record: "A man with feet is still like a tree with roots. When a tree dies, the roots are exhausted first, and people are old and old. If you often wash your feet with warm water, you can enhance blood circulation, adjust the viscera and dredge the meridians, so as to achieve the purpose of strengthening your body and eliminating diseases and evil spirits. Therefore, when the feet are soaked and the hot air slowly fades from the feet, the sleep at this moment must be so sweet.

In meridian health care, it is mainly based on the operation of qi and blood, with the close relationship between zang-fu organs as the key, and finally the meridians are unblocked, which is the foundation of health care. Qi and blood are two basic substances that constitute the human body and are the power source of human life activities. As Neijing said, "The master of man is the ear of blood gas" and "The spirit of man is the spirit of blood gas, so those who serve his life are also around his life." Qi is Yang, which is composed of essence in kidney, qi absorbed by spleen and stomach, qi transformed into Shui Gu, and air inhaled by lung. Blood is a nutrient produced by the digestion of food through the stomach, that is, body fluid. When it enters blood vessels, it is yin. The two are inseparable. Harmony between qi and blood will eliminate all diseases, while disharmony between qi and blood will change, and people will decline due to illness. Neijing also mentioned that "flesh and blood, the god of man, must be raised." It can be seen that the relationship between qi and blood and health and longevity is very close, and qi and blood are insufficient. How to talk about health preservation?