(1) Exercise can promote the excitability of the central nervous system and its leading part-the cerebral cortex, thus improving the balance and flexibility of the nervous system, improving the analysis and comprehensive ability of the cerebral cortex, and ensuring that the body has stronger adaptability to the changing external environment;
(2) Exercise can promote the growth and development of the body, improve the function of the motor system, and also improve the control ability of the nervous system to muscles;
(3) Exercise can improve the function of internal organs, promote myocardial development and enhance heart function.
Preventive measures for healthy exercise:
After exercise, the pores of the human body are in a state of expansion. If you take the above methods to cool down quickly, the pores will shrink sharply. In this case, although the body surface temperature drops sharply, the heat in the body cannot be emitted, which is easy to cause symptoms such as fever and cold. The correct way is to take a bath with warm water after the sweat is dry, and the water temperature is preferably 1~2℃ body temperature.
In summer, the temperature is high and physical energy consumption is high. A lot of exercise will accelerate the loss of water in human body, so it is necessary to replenish water in time. Drink two glasses of water about half an hour before exercise; In the process of exercise, it is necessary to replenish water in time, and it is best to drink physiological saline. Replenish water "a few times", you can neither drink a lot of water at once, nor wait until you are thirsty.
Refer to the above content: China Net-the integration of health and exercise