1, the human body limit that can be reached by natural fitness is different in age, which should be the most vigorous period for you to secrete testosterone and growth hormone (between 22 and 30 years old), during which you can reach your human body limit dimension. With the increase of age, the levels of growth hormone and natural testosterone decrease year by year, and the muscle mass may also decrease gradually. It is not easy to maintain muscle mass, let alone increase it.

2, natural fitness can reach the degree of muscle fullness. Fitness, such as all kinds of unarmed aerobics, rhythmic gymnastics, body gymnastics and all kinds of self-defense movements. Gymnastics can enhance the strength, flexibility, endurance, coordination and control of all parts of the body, thus making the body strong. If you want to relieve stress, exercise at least three times a week. Swimming, brisk walking, jogging, cycling and all aerobic exercises can exercise the heart.