Food is associated with happiness for many of us; no wonder there's something called stress eating. Now, a study on fruit flies found that there is a link between swallowing food and the release of happy hormones in the brain.

Why do we eat? Study finds swallowing releases 'happy hormones', triggering desire for more food

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swallowing and-serotonin

Why do we eat? Study finds swallowing releases 'happy hormones', triggering desire for more food