Diabetic patients exercise time considerations are as follows: 1, it is recommended that 1-2 hours after the meal exercise, because the gastrointestinal tract of the food in 1-2 hours to digest most of the blood glucose will be controlled at a relatively stable level; 2, do not in the insulin and oral medication to enhance the time of exercise, exercise at this time may be extreme hypoglycemic reaction; 3, the elderly or some patients like to get up in the morning and take medication, and then go out to exercise on an empty stomach, which will increase the chance of hypoglycemia reactions occurring.