Health care refers to maintaining, conditioning and supporting life. That is to say, based on the principle of regulating yin and yang, harmonizing qi and blood, and preserving spirit, we can achieve the goal of health and longevity through various methods such as regulating mind, guiding breath, regulating four seasons, supplementing food, supplementing medicine, abstinence, avoiding food and so on. Health preservation comes from the needs of ancient ancestors to resist the harsh natural environment, regulate physical strength, resist diseases and prevent diseases. Health preservation is an organic part of China traditional culture, and it is the result of our ancestors' summing up life experience in long-term life practice. The knowledge of eliminating diseases-therefore, it is different from the "medicine" for treating diseases in modern western countries. In Huangdi Neijing, Huangdi and his teacher Qi Bo had a wonderful conversation. When talking about the plague, the Yellow Emperor asked the teacher why some people were infected but could not get sick. Qi Bo's answer is that "healthy qi should be kept inside, and evil should not be done"-this is why the whole Chinese medicine is a great health preservation. Of course, the Chinese medicine mentioned here refers to the original Chinese medicine, not the "modern Chinese medicine" that has been unrecognizable since Kangxi castrated Chinese civilization.

Generally speaking, health preservation is a narrow sense of health preservation, which refers to the knowledge of improving self-healing ability through non-drug methods.

The formation of the holistic view of harmony between man and nature in the 50 th century BC marked the maturity of the concept of health preservation; In 6 10 AD, during the great cause of the Sui Dynasty, Chao, a doctor of Taiyi at that time, concentrated on the sources and symptoms of various diseases in Treatise on Diseases, but there were no prescriptions in the book, only 2 13 kinds of health-preserving prescriptions and guiding methods were listed. Therefore, since then, China has regarded health preservation as a routine treatment method, which has been officially advocated. The theory of health preservation starts from maintaining people's normal state and takes reducing consumption, strengthening regeneration, maintaining smoothness and maintaining stability as important links. The purpose of health preservation is to prolong life and be healthy and disease-free. From the first pregnancy to infancy, maturity and old age, as long as there is breath, people should stay healthy. The requirements of health care are also different according to their different situations.

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