Defeating The Headlock

From a neurological viewpoint you are attacking the hypoglossal nerve at approximately an inch forward from the angle of the jaw (before the jaw turns upward toward the ear). This is where the nerve connects to the back end of the tongue. The best way to activate this point is quickly to penetrate with the thumb tip upward toward the top of the skull. When done properly the technique can cause acute pain and momentarily stun the opponent.