Our 16 year old son has autism and is non verbal. For a little over a month now, he would hit himself (several times) very hard on the chest with his hand. This happens almost everyday..when he is angry ..and sometimes for no obvious reasons to us....While we do our best everyday to stop him from doing this, we wonder and worry about the consequences to his health..What could happen to him if this self-beating continues? Would his organs -heart, lung, etc be damaged/at risk? Help us, please..