Re: Where and how exactly do you hit the chin/jaw to cause a knock out?
There is a nerve where the mandible attaches to the skull. When you compress the jaw, or swing it from side to side, it hits that nerve and its lights out.
Also, acceleration to the brain. Hitting the jaw causes the skull to pivot on the spine, your jaw goes left, but your brain goes right. If your brain goes right fast enough it smacks against the side of the skull, and you're ko'ed.