There are many questions about what exercise can improve weight and lose weight, such as practicing yoga, playing basketball and doing pull-ups. In view of your situation, I suggest that you can often play basketball and volleyball to help you gain weight. Practicing yoga can effectively control weight and avoid obesity. I suggest you eat more fruits and sparerib soup, and get in touch with the sun to promote the absorption of calcium and the growth of bones.

More suggestions for reference: Zeng Zhijie's diary of increasing height