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When you get that rumbling feeling in your tummy, you know it's time to grab a bite to eat. But why do you need to eat in the first place? And what exactly causes the feeling? In this lesson, we're going to take a look at why people feel hungry, and how your body makes sure you get the food that you need.
So, how do we know when it's time to eat to get more of those molecules? The feeling you get of being hungry happens in response to chemicals being released in your body. Your body contains receptors inside your stomach and intestinal tract, and these receptors look for particular nutrients. When there are plenty of nutrients available for them to absorb
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