Health is a good state of human body. In this state, the human body can't detect any diseases, and its biological parameters are stable in the normal range of change, which has good adaptability to the daily changes of the external environment (nature and society). In a word, life is a rich mine to be mined by itself. Many factors needed in life can achieve psychological balance and satisfaction through hard work, but physically, a person does not achieve real health factors, and everything is equal to zero. Everyone's health has three elements: balanced nutrition; Adequate rest; Proper exercise. Because the living environment of modern people has changed, the collocation of nutrition and rest is not reasonable, and what is lacking is exercise. People can go without food for seven days and water for three days, but they can't go without oxygen for three minutes. But oxygen comes from exercise. Especially in the 20th century, 2 1 is the era of healthy life science. With the acceleration of industrialization, urbanization and mechanization, human activities are becoming less and less, the ecological balance of nature is constantly being destroyed, and environmental pollution is becoming more and more serious. Modern people generally lack oxygen intake, which leads to an increase in chronic patients. The important reason for the increase in the proportion of sub-health population is severe hypoxia. According to the preliminary analysis of modern people's health, 75% of them are in a semi-healthy state, 20% are in a healthy state, and 5% are real patients. The reason is that hypoxia is an important way. Most cancers are caused by chronic carbon monoxide poisoning.