1 can promote body growth. For adolescent children, the advantage of exercise is that it can promote bone growth and thickening, increase bone density and increase bone weight. Children who love sports have strong muscles. This is because exercise makes muscle fibers grow and increases muscle strength and endurance. Data show that people who don't like sports only account for about 40% of their body weight, while those who exercise regularly (such as competitive athletes) can reach 45%-50% of their body weight. In addition, the data also show that regular physical exercise can increase the chest circumference, shape the body without gaining weight, increase the height without losing bone, keep the proportion of all parts of the body coordinated, and make you look more beautiful!
2. Improve the function of respiratory and circulatory system. The heart is the center of the circulatory system. The data show that the heart volume of regular exercisers is larger than that of ordinary people, the number of pulses per minute is smaller than that of non-exercisers when they are quiet, and the stroke output is larger than that of non-exercisers. People who don't like sports output about 5000 ml of blood per minute in peace, 20000 ml in strenuous exercise and 35000 ml in strenuous exercise. Adolescence is an ideal period for physical exercise. If you strengthen physical exercise in adolescence, the benefits of exercise will last his life.
3. It is good for the nervous system. The nervous system is the headquarters of human life, and its blood demand and oxygen demand are also more than those of ordinary organs. As we said before, physical exercise can improve the functions of respiratory system and blood circulation system, increase oxygen intake and blood output, and make nerve cells get more sufficient energy and oxygen supply, which is conducive to the normal and efficient work of the nervous system, especially the brain, and has obvious effects on improving the intensity, balance and flexibility of the nervous working process.