The best answer: moderate exercise will not affect growth, and it is best not to take hormone drugs during development, so as not to destroy the normal work of your own system and affect development. Height is due to the thickening and lengthening of bones. Proper muscle exercise will not only hinder the height, but also promote the development and health of the human body. Here, I suggest you find the right teacher, especially muscle exercise. You know, muscles become bigger not because there are more muscle fibers, but because the muscle fibers become thicker. You must add enough protein, and the most important thing is to relax after exercise, otherwise you will be disqualified. Believe me, I'm from Sport University, and I've been playing for more than ten years. A reasonable diet and moderate exercise ensure that you have a good body. In fact, my friend will tell you the truth. If you are not a professional, try not to exercise your muscles too much, because as we all know, people, like machines, pull more things, the greater the heart load. Big muscles only increase the load on the heart. It is no good coming out. If you want to fight, I suggest you buy a watermelon knife or May 4th or June 4th. Can children exercise muscles? People often think that weight-bearing exercise is a necessary means to exercise muscle strength, but in fact unarmed exercise can also develop muscle strength. Before puberty, it is generally not appropriate to use weight. Professor Hiroshi Ishikawa, a doctor of physiology in Japan, believes that it is not only useless to use weight-bearing exercises before 10, but it is easy to cause injuries. Even if you do some weight-bearing exercise after puberty, the load should not be too great. Overload leads to the increase of cardiac ejection resistance, which tends to thicken the ventricular wall prematurely and restrict the development of ventricular cavity, which is not conducive to the improvement of children's cardiac function. You can take all kinds of unarmed exercises to make their muscles active and strengthen their strength, starting from childhood; Weight-bearing exercise should begin after puberty. Different age groups should have different exercise methods: in early childhood, children are mainly allowed to do more running, jumping, unarmed gymnastics, small balls, stick exercises, chair exercises and various exercises imitating animal forms, such as rabbit jumping and frog jumping. These exercises are full of fun, which makes the muscles of all parts of the body move vigorously. In childhood, when children begin to learn in primary school, in addition to all kinds of games, running and jumping, practicing skipping rope is also a good way to strengthen the muscle strength of lower limbs and exercise the muscle strength of upper limbs. At the same time, you can also do some sit-ups, climb poles, throw sandbags or do sandbags. These are very beneficial to children's strength. Because it is unarmed or light load, it has no adverse effect on the development of children's organ function. In adolescence, muscle strength develops rapidly, and skeletal muscle is stronger than in childhood, so you can start some weight-bearing exercises with small load. However, in the early adolescence, that is, the second stage of the first day of junior high school, strength exercises should generally be based on their own weight exercises (such as push-ups, pull-ups, arm flexion and extension, etc.). ), equipment gymnastics exercises and light loads (such as dumbbells, tensioners, solid balls, etc.). ), and do not carry out weight-bearing exercises such as barbells; In the late adolescence, that is, after the third grade and the first grade, it can be gradually adopted (such as squat or weightlifting), but the load should not be too heavy, and it should be light or medium. If you are a child, it is best not to exercise for the time being, because if the child exercises too early and does those weight-bearing exercises, it will affect the development of bones, leading to short stature or abnormal figure, which will affect his appearance. Generally speaking, children can do more flexible exercises to ensure their flexibility, such as pulling ligaments, or running and swimming properly, but don't overdo it, otherwise it will affect their development, and the real weight-bearing equipment exercise will wait until the body is fully developed. If you want to build beautiful muscles, the best time is in the years when you gradually gain weight. At this time, you will feel that your efficiency is very high. No matter how others practice, you can easily build bigger muscle blocks. Although fat is different from muscle, muscle is also transformed from fat. If you don't have fat, it will only lead you to practice more and more, but you have too much fat, so it is not easy to build obvious muscles. Therefore, the best time is when you gain weight, and at the same time, you have unconsciously turned fat into muscle. By the way, if you think you have too much fat and don't want to become a big man, you can do some aerobic exercise first, such as long-distance running, swimming and cycling, so that you won't become a big man. I'm a fitness instructor, believe me, hehe.