eli5 explain diarrhea

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What happens to body during diarrhea? Especially the water part? Normaly, the water we drink is absorbed in the body and most part of thrown removing toxic elements via urine. But, during diarrhea body losses lot of water and we become dehydrated and weak. Suppose due to some process let’s say like Osmosis the water travels thru membrane and finally transforms into another substance, blood. So, during dehydration, does this process reverse? Why do we feel weakness? Also, when body knows it’s getting weak why it is still dehydration without absorbing any water? Someone please explain whole process.

In: Biology

25 Answers

Anonymous 0 Comments

So, most of the answers people have talked about your body not having time to absorb the water your drink. The thing is, in addition to that for your average day your body pumps 7-9 liters of fluid into your GI tract. It’s in mucus, as a medium for enzymes, and sometimes as just water to soften things up. Generally, by the time your meal is hitting the end of the GI tract you’ve absorbed all of that liquid back into the body. When you have diarrhea, your GI tract is so busy shoveling everything out that it can’t reabsorb that liquid. So you’re losing any water you drank PLUS a bunch of water that was already in your body which is the dangerous part.

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