More than 20 years ago, not many people knew about diabetes, even among adults, but today, the word “diabetes” is often heard not only from adults but also from preschool children. It is clear that diabetes has indeed become a common, frequent and significant disease today. The World Health Organization predicts that the number of people with diabetes worldwide will be 120 million in 1994, 135 million in 1997, 175 million in 2000, 239 million in 2010, and will exceed 300 million in 2025. It is clear that the number of people with diabetes is increasing dramatically in every country in the world. We can also look at the data from China. In 1980, an epidemiological survey of more than 300,000 people in 14 provinces and cities across the country showed that the incidence of diabetes in China was 0.67%. However, several surveys in the following years showed an increasing incidence, such as 2.02% in 1989, 2.51% in 1994 and 3.21% in 1996. In the last decade, no large-scale survey has been conducted in China, but experts estimate that the current incidence of diabetes may exceed 5%. Of course, there are differences in incidence rates between the mainland and the coast, between urban and rural areas, and between large cities and small and medium-sized cities. However, the fact is that with the development of China’s social economy and the improvement of residents’ living standards, the incidence of diabetes is indeed increasing year by year and has become a major social problem threatening people’s health. The composition of diabetic patients is mainly type 1 and type 2. In recent years, although the incidence of type 1 diabetes has also been increasing year by year all over the world, the rate of increase is much less than that of type 2 diabetes, which is also the case in China. We often say that diabetes is caused by the interaction of genetic and environmental factors, starting with the presence of genetic susceptibility genes. Is it possible that in the last 20 or 30 years there has been a major mutation in human genes? Obviously not. It is mainly due to significant changes in the so-called “environmental” factors. I think we can analyze the reasons from three levels: natural environment, social environment, and individual environment. Our current natural environment on earth can be said to be deteriorating. A large number of greenhouse gas emissions lead to global warming; a large number of deforestation, mineral extraction, etc. lead to soil erosion and ecological balance damage; a large number of industrial waste, exhaust gas, waste water into the natural world, leading to serious environmental pollution. At least dozens of “environmental hormones” are known to exist, which directly interfere with the normal endocrine and metabolic processes in our bodies through food, drinks, contact and breathing. It can be said that the physical, chemical and biological harmful factors in the natural environment are currently causing damage to human health that cannot be underestimated, not only related to the high incidence of diabetes, but also to cancer, cardiovascular disease, infertility, etc. Our social environment has also undergone significant changes compared to that of more than 20 years ago. One is the aging of the population. The incidence of diabetes increases with age. Due to the development of social security and improvement of medical conditions, life expectancy has significantly increased and we are gradually entering an aging society. This is also a major reason for the increase in the incidence of diabetes. Secondly, the proportion of overweight and obese people is also increasing year by year, which is an important risk factor for type 2 diabetes. There is also the fact that compared with the past planned economy era, in recent years, in the process of industrialization, urbanization, marketization and internationalization, the competition for work, study, higher education, employment and promotion is fierce, and the general pressure increases and mental tension is high; due to the progress of science and technology and the realization of mechanization and automation, the physical labor of people in both manufacturing and various service industries is greatly reduced, and the physical labor in urban family life also The physical work in urban family life has almost disappeared, and physical activities like physical exercise are obviously insufficient. These are also one of the reasons for the increase in the incidence of diabetes. The individual environment can be divided into physiological and psychological environment, the progress of mechanization and automation, the reduction of physical labor in both manufacturing and service industries, and the physical labor in urban family life. The former is mainly due to an unreasonable diet structure, with less vegetables, fruits and high-fiber food, and too much high-fat, high-protein and high-calorie food. There is also irregular life, smoking, alcohol abuse, less physical activity, resulting in body fat, especially central obesity, visceral fat deposition, and the presence of obesity inflammation. The so-called psychological environment refers to a variety of social objective factors in the individual psychological world and the reflection of the mental virtual space, the impact on the thinking, emotions, mentality. The current increased competitive pressure, as well as polarization, materialism, money-grubbing and other social phenomena lead to a small number of people can not be treated correctly, imbalance of mind, jealousy, dissatisfaction, resentment and other negative psychology on the onset of diabetes also has an impact. In conclusion, the existence of susceptibility genes, coupled with the complex effect of the three environmental factors mentioned above, is what leads to the increasing incidence of diabetes year by year. For the improvement of the natural and social environment we have to start from ourselves, but for the individual environment we can completely start from the change of the bad lifestyle, and every day we have to regulate the emotion, adjust the state, and adjust the habit. If we persist, we will be able to avoid the development of diabetes.