Regular exercise and fitness can regulate the endocrine system of human body, make the secretion of adolescent growth hormone more vigorous, and then promote the physical development of adolescents. Reasonable exercise and fitness can also promote blood circulation, deliver sufficient nutrition to bones and provide sufficient raw materials for bone growth; At the same time, it stimulates the differentiation of chondrocytes in bones and accelerates the growth of bones.

2. Promote brain development

Regular exercise and fitness can stimulate the frontal lobe and occipital lobe of the brain and improve the structure and function of the brain. Structurally, it is conducive to the formation of complex logical thinking ability and functionally promotes the improvement of memory and attention.

Step 3 enhance physical fitness

Exercise and fitness can promote the accumulation of bone mass, enhance bone density, and then improve the bearing capacity of bones; At the same time, it can make muscles stronger, the contraction strength and endurance of muscles are obviously enhanced, and promote the improvement of teenagers' strength and endurance quality.

Exercise and fitness can also strengthen the muscle strength around the joints, which is conducive to the improvement of flexibility. Exercise and fitness can also improve the information processing ability of the brain, accelerate the reaction speed, and help improve the sensitivity and coordination quality.

4. Improve the problem of obesity or emaciation.

By participating in aerobic exercise, you can effectively consume excess energy, reduce fat accumulation, and control the body fat rate within a suitable range. Moderate strength training can promote muscle growth, increase the proportion of lean body mass and make the figure more symmetrical.

5. Relieve the study pressure.

Junior high school/high school, with heavy academic work. Exercise is an effective means to adjust the learning state and mental state. Moderate exercise and fitness can promote the brain to secrete endorphins, serotonin, dopamine and other hormones, make the brain produce positive and happy emotions, adjust the mental state of teenagers in intense study, and improve learning efficiency while relieving learning pressure.