Social isolation triggers the same brain regions as physical hunger
The human brain experiences loneliness as a biological necessity similar to food, activating the same neural reward systems that signal physical hunger when we are deprived of social connection.
A 2020 study from MIT revealed that social isolation triggers the substantia nigra, the same brain region responsible for food cravings. After just ten hours of isolation, participants showed neural activity in response to social cues that mirrored the brain's reaction to images of a favorite meal after fasting.
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