With the improvement of people’s living standards, obesity is gradually becoming a global epidemic. Some people say that obesity is not a little good for people, except for the chance of osteoporosis occurring is reduced. This is especially true for the elderly. Therefore, “money is difficult to buy old and thin” is a certain amount of truth. Diabetes is closely related to obesity. Obese or overweight people have a 3 times higher chance of developing diabetes than people of normal weight! Fat people have reduced insulin sensitivity, which reduces the use of glucose and forms insulin resistance. In order to maintain normal blood glucose levels, the pancreas has to work twice as hard to synthesize and release more insulin. Over time, the pancreas becomes exhausted and fails, and the released insulin is not enough to maintain normal blood glucose, leading to increased blood glucose and the formation of diabetes. Even if the development of diabetes is not, will also make glucose tolerance is impaired, become a backup to diabetes. Of course, obese patients have more diabetes, may also be related to its less physical activity. If obese patients do not have timely and appropriate treatment after the occurrence of diabetes, poor blood glucose control for a long time will cause significant weight loss, or even wasting, and this weight loss is a clinical sign of the deterioration of diabetes. Obese people are prone to develop diabetes, but obesity is not a necessary condition for the occurrence of diabetes. A part of non-obese patients can also develop diabetes. Therefore, if non-obese people have hypertension or hyperlipidemia, they should also have their blood glucose tested. Obese patients with diabetes are more likely to have hypertension and coronary heart disease than non-obese patients. Therefore, it is the basic goal of diabetes treatment to make the weight of obese diabetic patients close to the ideal weight by losing weight. So what exactly is considered obese! Here are mainly introduced 3 simple methods: 1, the ideal weight (kg) = height – 105, the ideal weight should float in the standard weight ± 10%, such as more than 20% of the standard weight, should be considered obese. 2, the standard body mass index (BMI) = actual weight (kg) ÷ height (m) 2, general male BMI: 20-25, female BMI: 19-24, more than this value, should be considered overweight. Men and women weighing more than 27 and 26, respectively, are considered obese. 3, waist / hip circumference ratio: measurement method, measurement should be as little as possible when wearing clothes, two feet and shoulder width natural standing. Waist circumference measurement method is measured at the lower edge of the rib cage and the uppermost point of the line connecting the hip bone. The horizontal position of the leather ruler during the measurement, and the elasticity is appropriate. Hip circumference should be measured horizontally from the upper edge of the pubic bone (not the estimated widest point of the hip). The waist/hip ratio should not exceed 0.90 for men and 0.85 for women, and this method is a more appropriate reflection of abdominal obesity than the previous two methods.