Hello, dear. Welcome to answer your questions. Your question is really good. As we all know, the famous singer Joker Xue is eager to be a bodybuilder, but the reason why he can't achieve it is that he is too thin. To be a bodybuilder, you must be able to gain weight. Parents are advised to do some anaerobic exercise (equipment exercise) while adopting aerobic exercise (brisk walking and jogging), and can practice abdominal muscles appropriately (step by step). Yes, refer to the valuable opinions of local gym coaches and bodybuilders. I wish you all the best, health, happiness and happiness. Please adopt it. Thank you.