Comment by rqtwteye

Totally agree. But a long time ago I saw a take kwon do guy break stones like you find in a river bed with his fist. I remember later on I saw his hands and they were almost crippled. They were huge and didn’t seem to have too much movement left. I think he broke them many times and would grow a lot of bone that way. Same way some muay Thai fighters have super solid shins.