Title says it. I have never questioned the idea of a “glass jaw” and have experienced it first hand. While it makes sense for a head injury to have side effects, what is it about the jaw that leads to K.O.’s?
In: 3
It is a lever mechanism.
What makes the KO is when he brain got shaken. The entire skull is like a see saw with the neck as the pivot. When you move one end of the seesaw, you move the other end as well. So when you want to shake the “end” with the brain, there are two ways to do it. 1st is by hitting that part directly, 2nd is by hitting the OPPOSITE part (hence the chin).
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