1. Physical exercise is beneficial to the growth of human bones and muscles, enhancing cardiopulmonary function, improving the functional status of blood circulation system, respiratory system and digestive system, promoting human growth and development, and improving the disease resistance and adaptability of the body.

2. Reduce the chances of children suffering from heart disease, hypertension, diabetes and other diseases in adulthood.

3. Physical exercise is one of the most active and effective means to enhance physical fitness.

4. It can reduce the risk of premature aging.

5. Physical exercise can improve the regulation function of nervous system, improve the ability of nervous system to judge complex changes in human activities, and make coordinated, accurate and rapid responses in time; Make the human body adapt to the changes of the internal and external environment and maintain the normal life activities of the human body.

6. Physical exercise can cultivate sentiment, maintain a healthy mentality, and give full play to individual enthusiasm, creativity and initiative, thus improving self-confidence and values, and making personality develop healthily and harmoniously in a harmonious atmosphere.

Extended data:

Physical exercise should be gradual. It is impossible to build a strong body, improve quality, perfect functions and form skills overnight. Instead, it is necessary to establish a dynamic stereotype in the cerebral cortex under repeated stimulation in the long-term exercise, and then form a conditioned reflex of the dynamic stereotype, so that the function can gradually adapt, accumulate and improve, and change gradually, sequentially and orderly. It is not only harmful to health, but also harmful to the body.

In the process of physical exercise, exercise load (refers to the physiological load of the body during physical exercise) directly affects the changes of human function, and then plays a role in the quality of exercise effect. If the load is too small, it will not promote the changes of the body and achieve the purpose of exercise; If the load is too large, beyond the range that the body can bear, it will cause adverse reactions such as restless sleep, loss of appetite and long-term fatigue.

Baidu encyclopedia-physical exercise