Su Yayan reached out and gestured at the model. "Because it's the weakest, it's the easiest to damage the brain. Normally, we can rub it lightly to relieve some of the brain's fatigue, but we can't hit it hard, especially not with extreme force. If we hit it too hard, it'll cause a person to faint, and if it's heavy, it'll be fatal."
Su Yayan's words caused some people to cry out.
"I know this! When I was in high school, I happened to run into two groups of people fighting near the school when I went home once. One of them fought very fiercely and even hit someone on the head. A boy was hit to this position by him and fell to the ground, unable to get up. Later on, I heard that he was gone just like that, and that person was arrested because of that."
