`  == Killing with sound.. ==  I have removed the following paragraph because it seems not based on any scientific facts, and sounds very implausible. A loud cry directly to the ear might permanently damage hearing, but ``seriously damage one's organs``? Considering that even the whole hydrophonic shock stuff by supersonic ammo was found to be exaggerated, I simply can't leave this unchanged.  tiktak 2005-11-03   ``There are also martial artists who can use kiai as a weapon.  The sound waves of your voice go straight through someone's body.  Since the human body is almost completely made out of water and since sound waves easily go through   water(like electricity goes through water)you can seriously damage one's organs with this technique.```