Exercise can reduce peripheral tissue resistance to insulin, improve the utilization of glucose by muscle tissue, regulate glucose metabolism, lower blood sugar and reduce urine sugar; promote the decomposition of adipose tissue, correct fat metabolism disorders, reduce body fat, lower blood lipids, regulate body weight and lose weight; improve physical strength, promote health, prevent and control the occurrence of infection and other complications. Type 2 diabetes is easier to control, and exercise therapy is especially suitable for obese patients with type 2 diabetes. Patients with type 1 diabetes should consider participating in exercise only if their condition is stable, their blood sugar is effectively controlled and they have obtained the consent of their doctor. Exercise form: mainly aerobic jogging, swimming, aerobics, taijiquan and other exercises. Exercise intensity: exercise intensity of 60% to 90% of the maximum heart rate. For infrequent participants, a period of low-intensity exercise first, and then increase the amount of exercise as the body allows. Exercise frequency: at least 3 to 5 d/week. Duration of exercise: 20-60 min/time/d, including 5-10 min of preparatory activities before exercise and at least 5 min of relaxation activities after exercise, and the effective heart rate must be maintained for 10-30 min during exercise. Time of exercise: Exercise for type 2 diabetic patients is generally arranged within 1 to 2 h after meals, which has the best effect on lowering glucose. time of exercise for type 1 diabetic patients It is best to choose the morning before insulin administration to avoid hypoglycemic reactions. Note: If blood glucose < 5.6 mmol/L, add a meal before exercise; if blood glucose is between 5.6 and 13.9 mmol/L, you can participate in exercise; if blood glucose > 13.9 mmol/L, delay participation in exercise. Medication use: use insulin at least 1 h before exercise; reduce the use of sulfonylurea hypoglycemic drugs and bactrim; discuss with the doctor how to reduce the use of insulin and oral hypoglycemic drugs according to the frequency of hypoglycemia and the level of hypoglycemia. Common adverse reactions: The most obvious complication of exercise in diabetic patients is hypoglycemia, which is more likely to occur in type 1 than type 2 diabetics. Patients with diabetes should monitor their blood glucose when participating in a new exercise program, and continue to explore reasonable medication dosages and dietary habits in order to achieve the desired level of blood glucose control and avoid hypoglycemia. There is also a latent danger of delayed hypoglycemia that diabetics should be aware of after exercise. Therefore, it is important to be prepared, such as carrying candy bars and chocolates, just in case.