1, don't eat monosodium glutamate and spicy food at ordinary times, which may lead to hair loss.
2, when nothing happens, (A Daqi)+massage. Massage your legs, and you will grow if you persist.
3, boys, then go to fitness, fitness can not only make the body strong, but also increase androgen.
4, drink plenty of water, eat more fruits and vegetables, be sure to avoid eating.
I hope it helps you.