How do i grow taller? could you tell me ?

Genetics: You cannot change your genetics and at your age it is very likely your growth plates in your bones have closed and you are done growing.

Unlikely to happen: At nineteen your growth centers have likely closed and you are unlikely to grow taller.If you want to know for sure an x-ray of your wrist ; hand can be analysed for bone maturity ; tell if the growth centers remain open to new growth.Good nutrition, rest and exercise allow a person to reach their tallest height while the opposite will stunt growth.