In terms of the content of food, there have been obvious changes since the reform and opening up. The Han nation is a farming-based nation, and has been eating “grains” for generations. This diet is also in line with the theme of the “healthy diet pyramid”, which is a diet based on carbohydrates (sugar). Some of the northern ethnic minorities in China are mainly animal husbandry, and their diet is based on “animals”, and they eat more meat. But in the past 30 years, especially the diet structure of young people has changed a lot, the diet to animals and animal fat intake is too much, on the contrary, little exercise or work, out of the car, into the door to sit on the sofa, excess calories can not be consumed, it is piled up in the body, so now a lot of small fat pier, even young adults are also overweight or obese people mostly. If you do not believe it, look at the current TV series about the war, many actors, whether the main actors or mass actors obese body type, covered with fat, fair skin, where there are the characteristics of the era? This change in the diet of their own nation or family goes against the traditional genetic basis of diet, and will naturally pay the corresponding price. That is sickness, this price is reflected in various organs of the body, first of all, the stomach overwork, chronic gastritis, chronic atrophic gastritis, and even gastric cancer; liver overload, fatty liver, cholestatic hepatitis, liver cancer, etc., sickness is the direct cost; excessive grease, alcohol consumption caused by pancreatitis, pancreatic tumors, etc. are not a few. The most common result of over-eating is still diabetes, or the metabolic syndrome represented by diabetes.