It depends how old you are ! If you're more than 19 or 20 all you can do is to grow up almost 3 or 4 Cms ! If you're under 18 or 17 you can, but you have to work hard and do a lot of sports such as basketball and vollyball and you … Read more
You can't.
Based on your other question it might be stressed related. Why not go to a doctor for an exam and see if you may have some sort of chemical imbalance.