DIGESTIVE SYSTEM

The digestive system is in charge of absorbing and transporting nutrients your body needs in order to thrive -- and it gets rid of all the waste the body doesn't need. Discover how saliva breaks down the food you eat and more.
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Why does my stomach growl?

Whether you call it grumbling, gurgling or growling, sometimes your belly just won't keep quiet. What makes your stomach growl, and why does it seem to happen at the worst times?

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  • 10 Fascinating Facts About Flatus

    10 Fascinating Facts About Flatus

    Flatulence is funny, but there's actually some pretty interesting stuff going on in your body to cause it. After reading these 10 facts, you may never look at airplane travel the same way. See more »

  • Do you really need to poop every day?

    Do you really need to poop every day?

    According to the famed children's book "Everybody Poops," well, everybody poops. But does everyone poop every day? And what happens if you don't? See more »

  • How does your stomach keep from digesting itself?

    How does your stomach keep from digesting itself?

    Ever wondered how your stomach acid knows the difference between your stomach and the food inside it? See more »

  • How Fasting Works

    How Fasting Works

    Sometimes people choose not to eat for religious, political or health reasons. It's called fasting, and it's been popular for thousands of years. What effects does fasting have on the body? Is it safe? See more »

  • How the Digestive System Works

    How the Digestive System Works

    What happens to your lunch after you eat it? As you read this, your digestive system is hard at work, taking it on a wild ride through your body. See more »

  • If I couldn't get rid of gas in any way, would I explode?

    If I couldn't get rid of gas in any way, would I explode?

    People expel gas by either burping or flatulating. Although it's an embarrassing thing to have happen, it's also a necessity. But what would happen if you just couldn't pass the gas? See more »

  • What does the body use water for?

    What does the body use water for?

    Want to keep your body running like a well-oiled machine? Step aside, expensive shakes and supplements -- water's the thing your bod craves most. See more »

  • What if I ate the silica packets marked "do not eat"?

    What if I ate the silica packets marked "do not eat"?

    Silica packets most likely contain silica gel or some other desiccant -- something that absorbs (collects) and holds water vapor. What would happen if you put that gel in your mouth? See more »

  • Why do some foods give you gas?

    Why do some foods give you gas?

    The average person passes a good amount of gas — in the form of burps and farts — every day. Some foods, as you're surely aware, can increase this amount quite a bit. Why do some foods cause more internal turbulence than others? See more »

  • Why do we vomit when we see something gross?

    Why do we vomit when we see something gross?

    Have you ever seen something so gross it made you want to puke? Or actually puke? Your caveman brain might be trying to protect you. Find out why nasty things make our stomachs churn. See more »

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