What is Hunger?
{{wiktionary}} '''Hunger''' is the [[emotion|feeling]] of wanting to [[eat]]. [[Ghrelin]] is a [[hormone]] that makes people feel hungry. The opposite of hunger is called ''satiety'' or ''fullness''. [[Leptin]] causes this feeling. People can [[wikt:survive|survive]] weeks without eating,<ref>{{cite web |url=http://www.scientificamerican.com/article.cfm?id=how-long-can-a-person-sur |title=How long can a person survive without food? |last=Lieberson |first=Alan D. |date=8 November 2007 |work=Scientific American |accessdate=13 January 2011}}</ref> but they will start to feel hungry after they have not eaten for a few hours. Hunger is generally considered quite uncomfortable. People who have eaten [[food]] usually will feel less hungry, or not hungry at all. People can live longer without food than without [[water]]. '''Hunger''' is also used to refer to people who generally have little to eat, and are therefore often hungry. This can lead to [[starvation]]. == References == {{reflist}} == Related pages == *[[Global Hunger Index]] {{science-stub}} [[Category:Hunger| ]]