Video explains the dangers of punching people to the face or head in self defense, and what techniques are safer.
Because of the structure of the head and hands, punching to the head is highly likely to injure the hands. Also, there s a dangerous risk of infection (often called “fight bite“) that can happen when the hand gets cut on the teeth.
Yes, a well placed strike can cause a knockout. But a poorly placed one, can create a serious injury for the striker.