What happens to the water when you get hydrated and why does it get depleted?

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Good makes sense. We get nutrients that go towards our whole body and waste gets processed. What happens to water when we are hydrating or get dehydrated.

In: Biology
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Water leaves the body through respiration, evaporation (perspiration) and in urine and feces. If you don’t replenish it, your body can’t regulate temperature, breathing becomes difficult and waste is retained. All bad things. When you take in water, it’s distributed throughout the body in the bloodstream.

When you are well hydrated, that water is moving through your veins and organs, collecting things that need to be carried out. Even when we are not well hydrated, our body has to do this, but it can’t work as efficiently if we aren’t drinking enough water, and can’t move the waste out without water for the junk to adhere to. (This is why when you’re dehydrated, your pee is darker; it’s carrying out all the built up garbage that’s been waiting.) You drink water, it is absorbed by the intestines and circulates in your bodily fluids, such as blood and mucous membranes. Then it filters through the kidneys, which push the waste and extra water into the bladder so they can keep processing blood, and the bladder moves it through the urethra and out of the body as urine. Depletion happens when we are not replenishing that supply because bleeding, sweat, tears, and urine all expel water.

Water follows your basic digestive pathway but when it gets to the kidney and through the loop of henle, it comes out of the kidney and spreads through the rest of the body through a few pathways. Same thing with nutrients. Anything that has not left the kidney will be sent as a waste product. This flaw is how we can use noncaloric sweeteners.