Why can exercise help teenagers keep healthy?

Promote bone and muscle development. Regular physical exercise can promote the growth of young people's bones, increase bone density, enhance the bearing capacity of bones, increase the density of bones attached to muscles, and make young people have greater muscle strength when they grow up. Therefore, the growth rate of height, weight and chest circumference of teenagers who often participate in physical exercise is generally higher than that of teenagers who do not participate in physical exercise.

Enhance cardiopulmonary function. Cardiopulmonary function is the most important physiological function index of human body. Taking part in physical exercise can make the heart muscle stronger, the elasticity of blood vessels better, and the blood supply capacity of the whole body stronger, so that the body can get more and more adequate oxygen and nutrition and discharge waste in time. Make teenagers strengthen their disease resistance and keep healthy. Promote the development of cranial nerves. The fastest period of human brain nerve development is adolescence. If we can persist in jogging, swimming, cycling and other sports, we can promote the development of brain nerves, enhance the ability of reaction and coordination, and improve the learning efficiency of teenagers.

Control your weight. Active exercise can help young people control their weight, thus reducing the risk of heart disease, hypertension, diabetes and other diseases in adults. Regulate emotions. Physical exercise can cultivate sentiment, relieve mental stress and tension, and thus keep teenagers in a healthy state of mind. During exercise, metabolism and energy consumption in the body increase, thus enhancing gastrointestinal peristalsis. At the same time, digestion and secretion are increased, digestion and absorption capacity are improved, appetite is increased, and children's growth and development are facilitated.

Physical exercise can cultivate people's strong and brave character, make people energetic and happy, improve their disease resistance, enrich their lives, delay aging and prolong their lives. Physical exercise can improve vital capacity, promote the development of respiratory muscles, deepen the breathing range, reduce the corresponding breathing frequency, and enhance the lung's reserve capacity and adaptability. Physical exercise can enhance the sensitivity of reaction, make people's movements coordinate quickly, adjust muscles and nerves perfectly and accurately, improve the reaction speed of activities, and improve the accuracy of balance and orientation. Physical exercise can also improve sleep quality and work and study efficiency.