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Sports and Physical Education "All Merits of Muscle Training" taught by the president of the Macho, who runs the first and second year Japanese gym. Muscle training solves all the problems of life. Let me tell you the "facts" from various angles, including valid reasons and real cases. Author ◎ If you are addicted to muscle training, your lifestyle will improve naturally ◎ To cure "cat back", "bench press" is actually good ◎ There are many American lawyers who are macho ◎ Headaches and lower back pain will surely disappear with muscle training ◎ There are also elderly people in my gym who have "bone density of over 120" ◎ Important for muscle training and work "PDCA Cycle 」◎「 Couple's Muscle Training" has the merit of killing three birds with one stone. Go to the gym when you worry about your body, mind, work and human relations!