From StarTalk.

The discussion explores how the human brain processes revenge. It explains that the pain of being wronged is registered in the anterior insula, a region linked to physical pain. This activates the dopaminergic reward system, giving pleasure when fantasizing about or enacting revenge. It concludes by highlighting how self-control via the prefrontal cortex is the only barrier between a grievance and retaliatory behavior — which may even be directed at proxies, not just the original offender.

From ‘The Science Of Revenge, with James Kimmel’: https://youtu.be/rynDGf9TZKQ?si=ouLLROhYdXGxHePt

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