Mondo Knows Facts
The stomach releases a hormone that builds hunger
Ghrelin rises before expected meals and falls again once food arrives Ghrelin is produced mainly by cells in the stomach lining and acts on the hypothalamus to stimulate appetite. Its level follows a daily pattern, climbing in the hours before a habitual meal time. Unlike most gut hormones, it increases before eating rather than after. It sits in Mondo's human body collection, one of 200 facts that each trace back to the reference below.
Where this comes from
Facts that can change over time are reviewed and updated. If something here looks wrong, Mondo would rather know than be confidently incorrect.
Go further
More facts like this
Stomach acid is strong enough to dissolve soft metalsGastric juice maintains a low pH to sterilise food and digest proteinsThe stomach regenerates its mucous lining every few daysEpithelial cell renewal prevents stomach acid from digesting stomach wallsThick alkaline mucus shields the stomach from self-digestionBicarbonate-rich barriers neutralise gastric acid at the mucosal surfacePacemaker cells set the rhythm of stomach churningInterstitial cells of Cajal generate slow electrical waves about three times a minuteEach adrenal gland is two glands in oneAn outer cortex makes steroid hormones and an inner medulla makes adrenalineSteroid hormones slip through cell membranesBeing fat-soluble, they enter cells and switch genes on or off directly
๐ซ Human Bodyfact 146 of 200
โ โ to keep reading, or swipe
Tags: hunger, stomach, hormones
The stomach releases a hormone that builds hunger: the short answers
- Where does this come from, and can I check it?
- Ghrelin rises before expected meals and falls again once food arrives. The figure is taken from NIDDK, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
- Is this really a human body fact?
- Yes. It sits on the Human Body shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
- What else can I read about it?
- The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.