The World Health Organization has designated obesity as one of the ten chronic diseases. At present, there are 200 million overweight people and more than 90 million obese people in China, and at least 2.6 million people die every year because of this, which is one of the four major medical and social problems in the world, together with AIDS, drug addiction and alcoholism. Obesity and hypertension, high blood pressure, high blood sugar and known as the “death quartet”, may become the number one killer of the 21st century. Overweight and obesity caused by diabetes, hypertension, cardiovascular disease and other diseases are increasing year by year and the trend is young. Long-term sustained obese people, the incidence of diabetes significantly increased. 1, diabetes When people are fat to a certain extent, muscle and fat will be insensitive to insulin, that is, the phenomenon of insulin resistance. At this time, the pancreatic islet cells will compensate for the secretion of more insulin to fight this phenomenon. About several years to decades later, the overworked islet cells will fail and develop into diabetes. 2, hypertension obesity the most common comorbidity is hypertension. High blood pressure is the important risk factor of cardiovascular disease. 3, coronary heart disease obesity is one of the independent risk factors leading to the development of coronary heart disease, obesity will also increase the incidence of heart attack, stroke. 4, sleep apnea syndrome A large amount of fat accumulation is likely to cause daytime drowsiness, poor sleep quality at night, and snoring, edema and even breathing difficulties and other symptoms, but also lead to “sleep apnea syndrome”. Obese children such as the emergence of more serious snoring, parents should pay attention to. 5, fatty liver caused by obesity fatty liver will complicate diabetes, hypertension, coronary heart disease, gout and other diseases. Therefore, scientific and healthy way to lose weight is very important, here we share a few scientific and effective weight loss methods: 1) develop a scientific diet plan. Eat well and nutritiously in the morning, eat richly at noon, and eat less in the evening. Pay attention to the method of calculating calories, control the total calorie intake of food in a day, distributed into three meals a day. 2) Develop a scientific exercise program. Insist on exercising 5 or 6 times a week for at least 40 minutes each time, such as jogging, calisthenics, rope skipping, brisk walking, yoga, etc. (3) Patients with severe obesity, if BMI is greater than 32kg/m2, or diabetic obese patients with BMI greater than 27.5kg/m2, can choose weight loss surgery treatment. In 2015, the famous Cleveland Medical Center announced the top ten medical innovations in 2015, and weight loss surgery for diabetes was ranked third. The main surgical procedures used are laparoscopic sleeve gastrectomy and gastric bypass, which are characterized by less trauma, faster recovery, lower risk and fewer complications. The surgery allows diabetic patients who meet the indications for surgery to achieve remission after surgery. Some domestic statistics show that the results of the surgery are remarkable, with a surgical efficiency rate of 95% and a complete remission rate of more than 80%.