TED-Ed: How does your body know you're full? - Hilary Coller

The video explores the physiological processes of hunger and fullness. It begins by describing the sensation of hunger and how fullness is achieved as food moves through the digestive system. The role of the vagus nerve and hypothalamus in signaling fullness is explained, along with the influence of hormones like cholecystokinin, insulin, and leptin. The video also highlights how different foods affect satiety and how hunger returns as hormones like ghrelin are produced. Overall, it provides a comprehensive overview of the body's mechanisms for regulating appetite.

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