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Asked by anon-354674 on 8 Mar 2023. This question was also asked by anon-354684, anon-354682, anon-354663, anon-354689, anon-354665.
Question: Why do we get hungry
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Sophie Wickens answered on 8 Mar 2023:
Feeling hungry is often our brains way of telling us that we need to re-fuel our bodies. Food will give us fuel to maintain our bodies energy levels which allow us to function and do activities throughout the day.
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Silvia Mazzotta answered on 8 Mar 2023: last edited 8 Mar 2023 9:16 pm
It is all about your brain and your stomach. When you stomach is empty and rumbling, it sends signals to your brain which tells your body that you need some food. Food is energy, so we need to eat to function. There are also a number of hormones that control our appetite.
However, sometimes we don’t eat out of hunger or real need. Let’s face it, if I see a cake just after I had my dinner, my stomach is not empty then, but I want the cake. Sometimes our brain tricks us into eating even when we don’t really need to, as some foods that we previously eat and enjoyed are recognised as potential extra energy. Basically the brain lives in panic mode…always scared to be left without energy and to let the body down!
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Aishwarya Mishra answered on 13 Mar 2023:
In simple terms, being hungry is just a way of our mind telling us that our battery(glucose) has run out. Glucose is like a currency of energy similar to your phones and ipads that helps our cells and organs perform important function. Once it is low, our body needs recharging. This is regulated by body sending signals to the brain to feed it.
Two major signals of hunger that we feel are as below:
Specialized motions in the stomach sweep up undigested food followed by final phase secreting a hormone called motilin which the rumbling in our tummies and hunger pangs.Another hormone is ghrelin which activates a specific region of the brain, which tell us that we are hungry.
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