Disease is a state in which the organism is in a state of imbalance between yin and yang. Why do we get sick? According to TCM, the causes of illness are external sensation, internal injury, and non-internal causes. The main external causes are wind, cold, heat, humidity and fire; the internal causes are emotion, diet and other damage to the internal organs; and the non-internal causes are injuries caused by insects and animals, injuries caused by metal blades and congenital factors. So among these factors, is there any decisive factor? Liu Jing, Department of Otorhinolaryngology, Xiyuan Hospital, Chinese Academy of Traditional Chinese Medicine, said, “If the righteousness exists within, the evil cannot dry up” and “Where the evil comes together, its qi must be weak”. The fundamental reason why people get sick, even some strange diseases, lies in themselves. Due to various reasons to damage their own vitality, they can not resist the attack of external evil, or can not accurately clean up their own pathological products in time, will lead to disease. Today, various kinds of stresses have increased dramatically, and problems with diet and air can damage the body’s own righteousness, and over time, it is not surprising to get sick. Therefore, it is the state of the body itself that plays the most important role in the disease process. The same is true for disease and treatment! Therefore, in addition to obeying medical advice and using various treatment methods, it is very important to remove the internal causes, such as unreasonable diet, such as agitation, such as long-term depression, such as long-term fatigue, etc. Only in this way will the disease be cured more quickly and will not recur! “The bell must be untied!” Maintain a healthy lifestyle, moderate exercise, reasonable meals, and a calm mind, and you will have health!