? Obesity is a state caused by the accumulation of excessive body fat, especially triglycerides. The incidence of obesity in China has increased rapidly in the past 10 years, and the incidence of overweight and obesity in China is now as high as 36.4% and 13.5% respectively. Body mass index (BMI): is a common tool to assess the ratio of weight to height, calculated as: BMI = weight / height squared. (Normal: BMI < 23.9; obese: 24 ≤ BMI < 27.9; obese: 28 ≤ BMI < 29.9; severely obese: 30 ≤ BMI < 40; morbidly obese: 40 ≤ BMI). The degree of obesity and the incidence of hypertension are closely related, with the prevalence of hypertension increasing 3 times in overweight people and 10 times in significantly obese people. It not only affects the beauty of the body, brings a lot of inconvenience to life, but also increases the risk of cardiovascular and cerebrovascular diseases and cancer, and leads to a variety of diseases, such as diabetes, hypertension, hyperlipidemia, fatty liver, gout and so on. In obese patients, 70% to 90% combined with depression, 35% to 53% combined with hyperlipidemia, 25% to 55% combined with hypertension, 14% to 20% combined with diabetes, 10% to 20% combined with sleep apnea, 10% to 15% combined with coronary heart disease, especially when obesity reaches morbid obesity (BMI more than 40), its mortality rate will increase sharply. Therefore, obesity seriously damage human health, we need to pay great attention to and actively prevent.