It is generally believed that when the content of energy circulating substances in human body is low, it can be called fasting.

For example, when you just get up, you go through 8~ 12 hours of fasting and strength training.

2. Why is fasting aerobic beneficial to reducing fat?

Because aerobic exercise is carried out on an empty stomach, the proportion of fat energy supply will increase, and the proportion of low-intensity aerobic fat energy supply will even reach 70%

3 fasting aerobic intensity should not be too high!

It is recommended to do moderate and low intensity aerobic exercise on an empty stomach. For example, walking fast and walking slowly can not only avoid muscle loss, but also prevent hypoglycemia.