First, bones can be thickened, but not long. Exercise can thicken bones. In real life, people who often carry loads have thicker bones, while people who are physically active have thicker bones. Therefore, if you want to make bones thicker, you must exercise.

Second, the thickness of the arm is mainly affected by the muscles. Go to the gym to get an annual card. You don't need to exercise for a year, but you will have obvious results in half a year. Schwarzenegger is a natural bodybuilder. When he was young, his arms were thicker than my thighs. )

Third, the history of masturbation does not affect the development of bones, nor does it have any psychological impact on masturbation, because masturbation is a normal thing in adolescence.

Fourth, go to the gym to keep fit. If you exercise a lot, you can drink protein powder. All in the gym.