2nd October 2019


What triggers your appetite?

If your stomach is growling, then it is producing ghrelin. Ghrelin communicates with your brain and triggers the release of an additional hormone called neuropeptide Y, which is a hormone secreted by the hypothalamus to stimulate hunger. Your hypothalamus is the part of your brain that regulates appetite and hunger.

What stimulates appetite?

For example, ghrelin and leptin are released from the stomach and adipose cells, respectively, into the blood stream. Ghrelin stimulates feelings of hunger, whereas leptin stimulates feelings of satisfaction from food.

What hormone signals hunger?

Well, let me introduce you to some hormones that do just those things: the "hunger hormones," leptin and ghrelin. Leptin is a hormone, made by fat cells, that decreases your appetite. Ghrelin is a hormone that increases appetite, and also plays a role in body weight.
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