1. In the process of aerobic exercise, we should not only choose the exercise mode to increase the body's oxygen intake, but also choose the appropriate amount of exercise. Because everyone's specific state is different, it is best to start with a small amount of exercise and gradually increase the amount of exercise during implementation. Generally speaking, light exercise refers to general walking or brisk walking, rhythmic jogging, cycling, yangko dancing, aerobics (including broadcast gymnastics), going up and down stairs, ballroom dancing and so on.

2. Heavy sports (multi-sector sports) refer to running fast, riding fast, skiing, intensive swimming, ball games, etc. The intensity and time between the two are moderate and moderate exercise. Moderate exercise can enhance immunity. Short-term intermittent heavy exercise can enhance immunity and resistance.

3. For persistent strenuous or ultra-strenuous exercise, we must pay attention to the problem of decreased immunity. Once found, we should take effective measures to restore its immune function.

Immunity is the body's own defense mechanism, the ability to identify and eliminate any foreign body (virus, bacteria, etc.). ), dealing with the aging, injury, death and degeneration of one's own cells, identifying and dealing with mutant cells and virus-infected cells in the body, and the physiological reaction of the human body to identify and eliminate "dissidents".

The so-called "resistance" means that under the control of the central nervous system, all human systems work together and cooperate closely to ensure the normal life activities of the human body. The immune system is a very important part. The main function of the immune system is to prevent the invasion of external pathogenic microorganisms and cause various diseases. In fact, this defense ability of the human body is resistance.