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The brain is suspended in a kind of thick jelly inside the skull, and a helmet can't keep it from sloshing around. If you hit your head hard enough, the brain goes bashing against the walls of the skull.
The brain is suspended in a kind of thick jelly inside the skull, and a helmet can't keep it from sloshing around. If you hit your head hard enough, the brain goes bashing against the walls of the skull.
