One, running is a whole body movement, it can cause rhythmic muscle contraction and relaxation of the whole body, muscle fibers and protein content increased. Muscles are toned landmark.

　　Second, skeletal body frame, body leverage. Growth and development in teenagers,runners can improve the blood circulation, increasing the supply of nutrients in bonecells, improving the ability of bone cell growth, so as to promote the normal development of bones. Older, metabolism decreased muscle shrinks, degenerative changesin bones, bone and joint diseases is also increasing. Running can strengthen metabolism, delayed bone degeneration, prevent the occurrence of bone and joint diseases in the elderly, so you slow down aging.

　　Third, the blood supply to the heart is the General hub of total, the power of life. Long run, will make your heart strong and increase protein and Myoglobin. Under x ray can clearly see the athletes ' hearts than normal, beautiful plump, beating strong.Cardiac volume volume 765-785 ml, while insisted exercise volume volume up to 1015-1027 ml, heartbeat can be slower than normal 10-20/min, working to alleviate the burden of the heart. The other hand, running strengthens the heart of tolerance,as we all know, generally when the heart beats more than 100 times/min, feel faintness, palpitation, asthma and people running for a long time, can stand up to 150 times per minute.

　　Four, human life without oxygen for a minute, breathe fresh oxygen and breathe outcarbon dioxide. Measuring respiratory function important symbol is the vital capacityand maximal voluntary ventilation. Running, breathing muscle, lung capacity increases 1-2, training athletes the maximum oxygen uptake capacity than ordinary peopleto improve 33-60%.

　　Five, running can make the stomach creep strength, increased secretion of digestivejuice, improves digestion and absorption capacity, increasing appetite, supplementary nutrition, strong physique.

　　Six, running for women, helps to regulate menstruation, reduce gynecological diseases. United States GYN Xiang Ge Jiede 1979 New York Marathon 394 female athletes ' menstrual cycles were investigated, found 26% of menstrual disorders in womenreturning to normal cycle, 17% of menopause women resumed menstruation. This is because running increases the metabolism, promotes digestion and absorption, regulates the nervous system functions, improvement of endocrine function.

　　Seven, running can temper people's will and stamina, enhanced toughness and patience, sensitivity, promote environmental adaptability. Long-term adherence to themovement of people, complete quantitative work has three main features: first, fastaction; the second is the potential, to maximize the potential function to fulfil its mandate; the third is rapid recovery, fatigue elimination of fast and complete, quickly returning to quiet levels.