There is no optimal time period for exercise, but two hours after breakfast and Chinese food is appropriate. Exercise in the morning, the body is in a low blood sugar state, strenuous exercise exercise may aggravate the symptoms. Exercise immediately after the meal, is not conducive to the digestion and absorption of food, and may even produce abdominal discomfort. Breakfast, two hours after the Chinese meal, food digestion and absorption is basically complete, this time the state of energy, suitable for exercise exercise body. Especially in the afternoon is the best time to exercise, the afternoon outdoor air is good, comfortable temperature. It is not recommended to exercise strenuously after dinner to avoid over-excitement of the body and affect normal sleep. Try to choose the time period suitable for their own exercise, can play a multiplier effect, but also to improve the state of the body.