It gives their brain as much pleasure as food or money:
Talking about ourselves—whether in a personal conversation or through social media sites like Facebook and Twitter—triggers the same sensation of pleasure in the brain as food or money, researchers reported Monday…
“Self-disclosure is extra rewarding,” said Harvard neuroscientist Diana Tamir, who conducted the experiments with Harvard colleague Jason Mitchell. Their findings were published in the Proceedings of the National Academy of Sciences. “People were even willing to forgo money in order to talk about themselves,” Ms. Tamir said.
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