PYY
Definition
PYY (Peptide YY) is a hormone that helps regulate appetite. It's released by cells in the intestines and colon after eating, signaling to your brain that you're full.
Analogy
Think of PYY as the polite dinner guest who tells you when it's time to stop eating. Just like how a guest might say, "I've had enough, thank you," after a satisfying meal, PYY sends a message to your brain saying, "We're full now."
Related terms
Ghrelin: This is known as the 'hunger hormone' because it stimulates appetite, increases food intake and promotes fat storage.
Cholecystokinin (CCK): This is another hormone that aids digestion and reduces appetite. It acts as an antagonist to ghrelin.
Glucagon-like peptide-1 (GLP-1): A hormone involved in regulating blood sugar levels and slowing down gastric emptying which can lead to feelings of satiety.
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