The study found that high-intensity exercise can be carried out two hours after meals; Moderate exercise should be arranged one hour after meals; It is most reasonable to do light exercise within half an hour after meals. Based on this, several optimal exercise periods can be deduced:

Morning meeting: from morning till 5: 30-6: 30 before breakfast.

Morning session: 2 hours after breakfast to 9: 00 before lunch-10: 30.

Afternoon session: 2 hours after lunch to before dinner 14: 00- 17: 00.

Evening session: 2 hours after dinner to19: 00-21before going to bed.

Early exercise can lower blood sugar.

Exercise in the above periods has advantages and disadvantages. For example, in the morning, when the human body performs strenuous exercise, it can stimulate the sympathetic nerve. This rapid change will cause a series of changes in the body, affect the mental state of the whole day, and be harmful to health. In addition, at this time, blood sugar is at a low level, and exercise consumes a lot of blood sugar, which easily leads to hypoglycemia. Afternoon sports are influenced by objective factors such as work, work and housework.

Modern sports physiology research shows that the highest and lowest points of human physical strength are controlled by the "biological clock" of the human body and generally reach the peak in the evening. For example, the lowest point of oxygen absorbed by the body is at 6 pm; Heart beating and blood pressure regulation are most balanced between 5 pm and 6 pm, while the body's sense of smell, touch and vision are also most sensitive between 5 pm and 7 pm. So, on the whole, the effect of exercise at night is better.

In addition, the hormone activity of the human body is also in a good state between 4 pm and 7 pm, and the body's adaptability and nerve sensitivity are also the best. Therefore, experts advocate exercising at night, but in the evening, we should pay attention to the intensity of exercise, otherwise too high intensity will excite sympathetic nerves and hinder sleep.

From 17 o'clock to 19 o'clock, the kidney meridian of foot shaoyin runs and the kidney meridian is flourishing. When the kidney essence is full, the vitality of Nahua is clear;

"Kidney hides the essence of reproduction and hides the essence of five internal organs. Kidney is the congenital root. " After the human body purges fire and detoxifies, the kidney enters the stage of storing sperm in due course. This time is not suitable for doing too much exercise or drinking a lot of water.

So generally speaking, 3 pm to 5 pm is the best exercise time.