Physical exercise can not only exercise physical fitness and promote people's mental health development, but also improve people's social adaptability, promote social communication and friendship, and realize the triple health of physical, psychological and social communication, so physical exercise cannot be separated from physical and mental health.
First, physical exercise and physical health.
Physical exercise is a kind of benign stimulation to human organs and systems through scientific physical activities, which promotes a series of adaptive reactions and changes in the body's morphological structure and physiological functions, thus enhancing physical fitness and promoting health.
(a) the impact on metabolism.
Physical exercise can enhance people's metabolism, promote the ability of cells to absorb and utilize sugar, increase the storage of liver glycogen and muscle glycogen, and improve the body's ability to regulate sugar metabolism.
(2) Functions of bones, joints and muscles.
Physical exercise is beneficial to the adjustment of bone joints. Persisting in physical exercise can prevent osteoporosis, keep joints flexible, ligaments elastic, and keep hands and feet flexible, so that people can easily and methodically complete all kinds of complex movements.
(3) Influence on cardiovascular system.
Proper and regular physical exercise can slow down the heart rate during inactivity and exercise, greatly reduce the working time of the heart, increase the function of the heart, keep the blood flow of the coronary artery unobstructed, better supply the nutrients needed by the myocardium, and reduce the risk of heart disease. Physical exercise can prevent cardiovascular diseases, delay the aging of immune system, prevent cancer, prevent bone and joint diseases, obesity, depression and other diseases, and help the brain function better.