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The Effects of Bullying on the Brain
Cortisol is a toxic substance for the brain. It's great for the short term and gets you out of a in a dangerous situation, but long term exposure cortisol is very damaging to all parts of the body. If you study the brains of murderers in prison they have an enlarged or swollen amygdala in their brain. They grow up under extreme threat and become highly aggressive because that's the only way they survive.