Meditation plays an important role in traditional health care. The ancients believed that God was the master of life activities. Keeping quiet and psychologically stable can maintain vitality, make the five internal organs calm, help prevent diseases, improve health and prolong life. On the other hand, anger hurts the liver, likes sadness, grieves the lungs, fears kidney damage, and even induces various physical and mental diseases. In practice, the ancients explored the methods of physical exercise, such as massage, Qigong, Tai Ji Chuan, Baguazhang and Wuqinxi, to strengthen the body and prolong life. If a person craves comfort, does not exercise enough, or is overworked, it is easy to cause strain, which is also called five injuries, that is, long-term blood injury, long-term lying injury, long-term flesh injury, long-term bone injury and long-term muscle injury. The ancients believed that a reasonable diet can regulate essence, correct the deviation of yin and yang of viscera, prevent diseases and prolong life. Therefore, we should not only pay attention to the extensiveness of diet, that is, taking five grains as nourishment, five fruits as help, five livestock as benefit and five vegetables as supplement, but also pay attention to the harmony of five flavors, otherwise it will cause diseases due to unbalanced nutrition, biased physique and dysfunction of viscera. Chinese medicine highly advocates nourishing drugs to regulate yin and yang, nourish viscera and nourish essence and blood. Reasonable tonic can strengthen the body and prevent and treat diseases. However, tonic should be dialectical and moderate, and we should also consider adapting to the four seasons. When taking tonic, it is more suitable in autumn if lung medicine is inserted; If it is warming, winter is more suitable. The ancients believed that Xue Jing was the essence of human nutrition and the material basis of life. Only with the support of Xue Jing could the internal organs maintain their normal functions. If sexual desire is unbridled and excessive blood loss occurs, it will cause physical weakness, pathological changes and loss of life. Nourishing yin essence can delay aging. Meridian Health Meridian is a network system all over the human body, which controls the flow of qi and blood and ensures the normal function of various tissue systems. Huangdi Neijing says that meridians have the functions of deciding life and death, treating all diseases and regulating excess and deficiency. Ancient health care experts believe that dredging meridians can be an important measure of health care, and the simplest method is stimulation, massage and acupuncture at three important acupoints, namely Hegu, Neiguan and Zusanli. Hegu point can prevent and treat facial diseases, Neiguan point is helpful to prevent and treat heart diseases, and Zusanli point is the most effective to prevent visceral diseases, especially digestive system diseases. According to the ancients, the four seasons have different climate changes, and everything on the ground includes the laws of human life, growth, harvest and hiding. Therefore, the ancients put forward the method of timely health preservation from the aspects of food, clothing, housing and transportation. The operation of human internal organs, yin and yang, qi and blood must adapt to the four seasons, and can't do the opposite. Adjusting one's life behavior in time is helpful to keep fit and prevent diseases. Otherwise, it is easy to hurt the liver, heart, lungs and kidneys against spring and summer. Self-cultivation The ancients believed that anyone who pursues health and longevity should first start with self-cultivation. On weekdays, we should eliminate all kinds of delusions, say more good words and do more good deeds. Meng, an ancient physician, said: If you can protect yourself and nourish your feelings, you must always keep your word, be full of words and do good deeds. Sun Simiao said: I sincerely want to get rid of it, I am reasonable, and I am troubled by self-cultivation. Cultivating good conduct and often doing things beneficial to others can make you open-minded and happy. The ancients believed that the vitality of the human body has the functions of metaplasia, blood consolidation, warming and nourishing the whole body tissues, resisting evil spirits and enhancing the functions of viscera. Many factors, such as unbalanced nutrition, improper work and rest, emotional disorder, and invasion of pathogenic factors, can all lead to symptoms such as yuan-qi deficiency, stagnation, stagnation and inversion, and then cause pathological changes of the body. The method of regulating qi and keeping in good health advocates a series of measures, such as careful living, adapting to the four seasons, avoiding overwork, preventing too much sex, regulating diet, reconciling five flavors, regulating seven emotions, saving words, learning to breathe and guiding, to regulate vitality, eliminate diseases and prolong life. The ancients believed that if a person was moody, it would lead to imbalance of Yin, Yang and Qi in the body. Fatigue can damage temper, while diet can lead to dampness, heat and phlegm. If you have sinned against six evils, there will be many diseases besides injuries. This pathogenic factor is regarded as poison by human body, so it is proposed to reduce poison and preserve true qi. By taking measures such as diet conditioning and taking drugs, we can reduce the accumulated poisons in the body, avoid diseases, prevent premature aging and prolong life.