The benefits of exercise are: Physiologically:
1, physical exercise is conducive to the growth of human bones and muscles, enhance cardiopulmonary function, improve the functional state of blood circulation system, respiratory system and digestive system, and is conducive to human growth and development, improve disease resistance and enhance the 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.
It can reduce your 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.
Psychologically:
1, physical exercise has the function of regulating human tension, improving physical and psychological state and restoring physical strength and energy;
2. Physical exercise can improve physical health, make the tired body have a positive rest, and make people energetically engage in study and work;
3. Stretching your body and mind will help you sleep and eliminate the pressure brought by reading.
4. Physical exercise can cultivate sentiment, maintain a healthy mentality, 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;
Team events and competitions in physical exercise can cultivate people's spirit of unity, cooperation and collectivism.
Teenagers are an important turning point in people's life when their physical and mental development tends to mature. At this time, you will be surprised to find that there are many unprecedented changes in physical and psychological aspects, and you obviously feel that you have grown up. With the improvement of people's living standards and cultural quality, "everyone has a love of beauty", so we should thrive in sports and keep fit in sports.
Disadvantages of not exercising:
The World Health Organization estimates that the number of deaths caused by lack of exercise exceeds 2 million every year in the world. Note: No exercise will reduce the body's immunity, and some diseases and viruses cannot be effectively immunized, which will lead to sudden death. There is another important situation. If children don't have enough physical exercise, their brains will not develop well, which will affect their intelligence.
Sports opportunities in daily life:
Take more stairs and less elevators.
Strive for opportunities to walk more and take fewer cars.
When watching TV, you can do some stretching exercises during advertising time, such as bending over and kicking your feet.
Exercise regularly with classmates or friends, such as jogging, playing badminton, swimming, etc. And cultivate their interest in individual sports and develop regular exercise habits.
Scientific fitness exercise and proper labor have many benefits to the body, mainly including: 1. Exercise can stimulate the central nervous system and endocrine system. Exercise can promote the blood circulation of the whole body, enhance the metabolism of cells and tissues, contribute to the supply of oxygen and nutrients in various systems of the body, and enhance the functions of various organs of the human body; It can also delay the decline of the body's ability, delay the decline of the structure and function of human tissues and organs, and make people full of vitality. 2. Exercise can reduce body fat accumulation and lose weight. Exercise needs energy, and energy mainly comes from fat, so exercise can lose weight, thus reducing the burden on the heart, strengthening the body and achieving the function of bodybuilding. 3. Exercise can regulate mood and make people feel happy. Theory and practice have proved that regular activities in the natural environment can adjust people's emotions and make people feel happy and refreshed. At the same time, participating in various sports can cultivate a cheerful and peaceful attitude and help to establish good interpersonal relationships. 4. Exercise can enhance cardiovascular function. Regular exercise can enhance the contractility of the heart, increase the cardiac output and cardiac index, slow down the heart rate and enhance the reserve function of the heart. Physical exercise can also reduce total cholesterol and low-density lipoprotein in blood and increase high-density lipoprotein, thus preventing the occurrence of atherosclerosis. 5. Exercise can improve the function of nervous system. Fitness exercise has an obvious effect on delaying the aging of nervous system, which is mainly manifested in the obvious enhancement of memory, the obvious improvement of the body's responsiveness to external stimuli, and the improvement of attention and analytical comprehensive ability to varying degrees. 6. Exercise can enhance the function of respiratory system. The influence of exercise on respiratory function is mainly manifested in increasing vital capacity, enhancing gas exchange between lung and tissue, and improving oxygen uptake and utilization rate of tissue cells. 7. Exercise can continuously improve the function of digestive system and promote metabolism. Middle-aged and elderly people can increase their appetite, promote the secretion of digestive enzymes, improve gastrointestinal motility and improve the absorption and utilization of foreign nutrients through physical exercise. At the same time, physical exercise can also accelerate the utilization of heat energy in the body, prevent and reduce the accumulation of fat in the body, and keep the metabolism of sugar, fat, protein and free radicals in a stable and balanced state. 8. Exercise can improve the immune function of the body. Studies have proved that exercise can improve the transformation ability of lymphocytes, stimulate B cells to secrete specific antibodies, and enhance the cellular immunity and humoral immunity of the body. Exercise can also improve the phagocytic function of macrophages and help to eliminate free radicals in the body. 9. Exercise can promote the development of brain and intelligence and improve memory. People's intellectual activities mainly depend on the movement of the brain, which accounts for a quarter of blood supply and a fifth of oxygen consumption. Exercise increases the blood flow through the brain, which not only delays the aging of brain cells, but also improves the reaction speed of nerves. Science has proved that exercise can promote the development of the brain, make the brain release a special chemical substance, make people feel happy, and play a very good role in developing intelligence and improving memory. In addition, running, walking and mountain climbing are always accompanied by unspeakable comfort, which is related to the secretion of a powerful hormone-endorphin in the body. Endorphins are secreted in endurance activities and have analgesic effects. Biopsychologists have also found that when people are happy, they will produce a chemical substance-"endorphins". Under normal circumstances, the concentration of endorphins in the human body is not high, but if it is extracted in large quantities and injected into the spinal cord and brain, it will make people feel relaxed and produce a feeling of laughter. When people are happy, their mental state is optimistic. In a word, exercise can enhance physical fitness, disease prevention and resistance, improve immunity, improve intelligence and brain, and be comfortable and happy, thus maintaining physical and mental health, improving quality of life and prolonging life.