What is a high-risk group for diabetes? Those who meet one or more of the following 1. abnormal fasting glucose (fasting glucose between 100-125 mg/dL) or reduced glucose tolerance (glucose tolerance 2 hours after meal between 140-200 mg/dL) 2. people with a family history of diabetes, that is, one parent, siblings or other relatives with a history of diabetes, these people are more than 2 times more likely to develop diabetes than people without a family history; 3. The odds of diabetes are more than 2 times higher than those who generally do not have a family history; 3, overweight or obese people with BMI ≥ 24 Kg/m2. men with waist circumference ≥ 2250px women with waist circumference ≥ 2125px 4, already suffering from hypertension (blood pressure ≥ 140/90 mmHg), dyslipidemia (HDL-C ≤ 0.91 mmol/LTG ≥ 2.22 mmol/L) 5, previous Women who had elevated blood glucose during pregnancy or gave birth to a huge child (weighing more than 4Kg); 6, people with low birth weight or lighter than average child weight in infancy; 7, people aged ≥45 years, the incidence of diabetes increases with age and rises significantly since the age of 45 years, reaching a peak at the age of 60 years. 8, smoking, less physical activity, stressful life and mental tension; 9, long-term use of some drugs affecting glucose metabolism, such as glucocorticoids, diuretics, etc. 10, high-risk race 11, patients with cardiovascular and cerebrovascular diseases 12, patients with polycystic soft nest syndrome with BMI ≥ 28Kg/m2 13, patients with severe mental illness or long-term treatment with antidepressants.