Muscle exercise will be better from the age of 18, but many people start practicing before that. We should know that muscle growth is based on the principle of "excessive recovery", that is, it requires high-intensity exercise and high-quality nutritional supplements, plus the composition of body recovery factors such as body hormones, in order to form large muscles. Under 18, your body is still developing, and too much training may affect your development. You can exercise moderately at your age, and it is not recommended to pursue muscles excessively.

Can reduce dumbbell weight-bearing exercises, do more push-ups, parallel bars arm flexion and extension and pull-ups, and have obvious strengthening effect on chest muscles, latissimus dorsi muscles, shoulder muscles and arm muscles.

Pay attention to several points: don't overwork, don't overwork, don't overload.