I. Do not treat the already sick, but treat the not yet sick. Huang Yan, Department of Cardiovascular Medicine, Fu Wai Hospital, Beijing People born in this world are inevitably born, old, sick and die. However, in addition to congenital heredity and the influence of external environmental factors, the main reason for illness is the inappropriateness of human spiritual thinking and lifestyle. Most diseases are actually caused by human beings themselves, so the real cure must be to change the incorrect concepts and lifestyles of human beings, so as to avoid or reverse the occurrence of diseases. As the old saying goes, “A sage does not treat the sick, but the sick before they get sick.” The moral of the story is here. The World Health Organization (WHO) has declared to the world that 60% of an individual’s health and longevity depends on himself, 15% on heredity, 10% on social factors, 8% on medical conditions, 7% on climatic influences, and among the factors that depend on the individual, lifestyle is the main factor. 60% of all deaths from non-communicable diseases worldwide in 1999, and 43% of the disease burden was caused by non- infectious diseases, half of which are cardiovascular diseases, and most of the non-communicable diseases are lifestyle diseases. Numerous clinical studies and surveys suggest that noncommunicable diseases such as cardiovascular diseases have significantly increased in development since the 1920s, expanding from developed to developing countries. The prevalence of cardiovascular diseases often follows the economic development of the region. In the United States and many industrialized countries, coronary heart disease is the most important disease. Coronary heart disease is the leading cause of death in the United States, accounting for half of the nearly 1 million deaths from cardiovascular disease each year.