The benefits of exercise to human health and longevity. Second, because exercise can improve the body's metabolism, according to the biological law of "use will advance, waste will retreat", long-term adherence to exercise can enhance the functions of various organs and organs, make the body full of vitality, thus delaying aging, health and longevity. Exercise is good for all your muscles. There are about 6 billion muscle fibers in the human body, including 639 muscles, which are divided into voluntary muscles and involuntary muscles. All movements of the body are due to muscle contraction. Human physical strength is also produced by muscle contraction. Insist on exercise, muscle fibers will gradually become thicker and stronger, the reserves of protein and glycogen will increase, blood vessels will be rich, blood circulation and metabolism will be improved, and the endurance, speed, flexibility and accuracy of muscle movements will be improved, thus preventing muscle aging. The benefits of exercise on bones II. There are 206 bones all over the body. It can support, protect and exercise the human body. Bone marrow also has hematopoietic function. Exercise and health preservation can make bones grow well, promote bones to be strong, and enable bones to bear greater loads. Muscles are attached to bones. Insisting on exercise can enlarge the bony process at the attachment of muscles, improve the blood circulation and metabolism of bones, thicken the density of the outer layer of bones, make bones stronger, and improve the ability of bones to resist fracture, bending, compression, elongation and torsion. Enhance the toughness of joints, improve the elasticity and flexibility of joints, and prevent bone hyperplasia and degeneration of ligaments and muscles. Continuous exercise can make people relaxed, agile and powerful. The benefits of exercise on respiratory organs. The human lung consists of about 750 million alveoli, which are the main organs for breathing. The human body continuously sucks in oxygen from the fresh air in nature, and exhales carbon dioxide produced by tissue and cell metabolism. This process of absorbing oxygen and expelling carbon is called breathing. In a quiet state, the average person breathes1.6-1.8 times per minute. When people inhale as much as possible and then exhale as much as possible. The total exhaled volume is called vital capacity. Normal adult male's vital capacity is about 3500-4000ml, and female's is 2500-3000ml. Continuous exercise can strengthen the respiratory muscles, enlarge the range of breathing movements, increase breathing difference, increase vital capacity and deepen breathing depth. With the improvement of respiratory function, lung gas exchange is sufficient, oxygen content in blood increases, and the oxidation process of energy substances is perfect, thus promoting the metabolism of the whole body. It is extremely beneficial to maintain vigorous energy and delay physical aging. The benefits of exercise on organ digestion and absorption. People who live to 100 need to eat nearly 100 tons of food and water. The human body must constantly absorb nutrients from the outside world, including protein, glycolipid, vitamins, water and minerals. Absorbed and synthesized into its own substance. At the same time, we should constantly decompose our own material and alienation into other things and excrete them. Gastrointestinal tract is the main organ for human body to digest food and absorb nutrition. Insisting on exercise can increase appetite, promote gastrointestinal peristalsis, promote gastrointestinal blood circulation and promote digestive gland secretion, thus enhancing food digestion and nutrient absorption. So as to enhance the whole body's fluid intake circulation, and the whole body's metabolism is vigorous, which is beneficial to health and longevity. The benefits of exercise therapy on systemic blood circulation. Although a person's heart is only as big as a fist, under normal circumstances, about 5 kilograms of blood will be discharged every minute, and it can reach more than 40 kilograms during exercise. When people live to 70 years old, the heart can discharge about1750,000 liters of blood. The heart and blood vessels are the power sources for the human body to transport oxygen and nutrients to the whole body through blood, and then discharge carbon dioxide and other wastes from the body. It plays an important role in people's life activities. Insisting on exercise can improve cardiovascular function. Because long-term exercise can gradually develop and strengthen myocardial fibers, enlarge the lumen of coronary artery branches, enhance the elasticity of blood vessel walls, increase cardiac output, and improve blood circulation of the heart and the whole body, which is extremely beneficial to health and longevity. The benefits of physical exercise to urinary organs. Kidney is the main organ of urinary system, including ureter, bladder and urethra. Human kidney can filter blood every minute 1? 6? 12 liter, when people live to 60 years old; His kidney will filter more than 30 thousand blood. Most of the wastes produced by human metabolism are excreted through urine. Sticking to exercise regimen can improve the blood supply of kidney and its ability to eliminate metabolic wastes, such as urea, creatinine, lactic acid and ketone bodies. During exercise, so as to keep the internal environment constant. At the same time, it can also strengthen the reabsorption of water and other beneficial substances by the kidneys. If sweating increases during exercise, the body will be short of water and lose salt, so the kidney will improve the reabsorption of water and salt to maintain the balance of water and electrolyte in the body. Endocrine benefits of exercise regimen. Endocrine glands are scattered in various parts of the body, such as pituitary gland, pineal gland, thyroid gland, parathyroid gland, adrenal gland, gonad and thymus. The substances they secrete are called hormones. It enters the blood circulation through capillaries and capillaries and becomes an important functional regulation system in the body. The main function of endocrine is to regulate the metabolism of the body in the form of body fluids, maintain the dynamic balance of the internal environment, the adaptability of the body to the outside world, and the growth and reproduction of individuals. Exercise can enhance the function of endocrine glands, such as adrenal cortex, which is beneficial to the metabolism of protein, fat, sugar, inorganic salts and water in the body. For another example, enhancing thyroid function can improve cell metabolism. The benefits of exercise on the brain and nerves. Adult brain is about11500g of bone marrow, of which about14 billion neurons are composed of brain, spinal cord and peripheral nerves all over the body. All organs in the human body interact, restrict and coordinate with each other under the unified control of the nervous system, thus completing the unified physiological function. In addition, the unity of opposites within the body must be uniformly regulated by the nervous system to adapt to the variability of the external environment. Exercise can enhance the function of nervous system and enhance the tolerance to physical and mental work. Participating in sports can make you feel happy and energetic, enhance your strength, significantly enhance your speed, flexibility and flexibility, and it is not easy to get tired, which is conducive to health and longevity. The benefits of exercise on the skin. Skin is an important organ covering the human body surface. Its functions include protecting the body, feeling stimulation, regulating body temperature, secreting and excreting, infiltrating and harvesting nutrition, and participating in metabolic immunity. Exercise can improve the structure and function of skin. During exercise, it can strengthen the blood circulation of skin deficiency, provide sufficient nutrient oxygen and vigorous metabolism, enhance the human body's tolerance to cold and heat, and enhance the skin defense function, which is beneficial to health and longevity. It's too long ... time