I believe that many people have had the experience of feeling unwell but not being able to detect any abnormalities in the hospital. In fact, this is an intermediate state between health and disease, also known as “subhealth”. People who are in a “sub” state of health often feel tired and weak, dizzy, short of breath, numbness in the hands and feet, distracted and confused, unable to lift their spirits, and even affect their meals and sleep. Sub-health is caused by the change of modern life style and the increase of work pressure. The current diagnostic technology of modern medicine can only diagnose those diseases that have already taken shape (already sick), and modern diagnosis is not able to help those diseases that have not yet taken shape (not yet sick). In Chinese medicine, sub-health is a disease. It may be the imbalance of yin and yang in the internal organs, the disharmony of qi and blood, or the irregularity of the meridians and blood vessels of the human body, because it is relatively early, these manifestations are relatively mild, and often people do not care much. But they are the sprouts of disease, the root of the trouble. It can be said that the highest level of Chinese medicine health care is “treating the disease before it happens”, that is, before the disease occurs, through a variety of methods to maintain the body, cultivate the righteousness, improve the body’s immunity, to play a role in preventing disease. Chinese medicine health care emphasizes that the heaven and the people correspond to each other, in accordance with the four seasons of health care, “harmony”, according to the environment, the different seasons and take different methods; but also according to the person, emphasizing the principle of individualization. Each person’s physique is different, and the symptoms of discomfort are also different, to see what kind of physique they belong to, what problems are likely to occur, what diseases they are prone to, and then propose the corresponding solutions in a targeted manner, to carry out daily diet, living and other aspects of conditioning. In addition, there are many means of Chinese medicine for health care, including acupuncture, acupuncture, massage and massage, meridian scraping and cupping, food therapy and medicine, as well as Chinese medicine and emotional health, qigong and taiji health care.