The biological signals that signal the end of a meal

How does your body know you're full? - Hilary Coller · 4:34 · Video: TED-Ed · Watch at the source

In short: We all recognize the intense physical sensation of hunger, but the transition to satiety is just as complex. This video explores the biological mechanisms that allow your body to recognize when you have had enough to eat.

While hunger manifests as a powerful, often unpleasant physical sensation in the intestines, the body possesses an opposing force: fullness. Hilary Coller explains the underlying processes that communicate satiety to the brain, detailing how the body shifts from the urge to eat to the recognition of being full.

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