Another bonus question about urine, while I’m pondering the subject: when we are very hydrated, urine looks extremely clear, almost like water. If you are essentially just taking water in and peeing water out when you are very hydrated, is it even worth drinking water at that point? Like, are there diminishing returns to the amount of hydration we can get? (I know there’s those extreme cases of dying from drinking too much water, but that’s not what I’m talking about here)
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Water can be quite rapidly absorbed into your bloodstream after drinking. As low as 5 minutes on an empty stomach. So you feel the need to pee because after chugging a lot of water, a lot of that water has been quickly absorb into your blood stream and filtered out by your kidneys into your bladder.
And yes, there are diminishing returns to drinking water for hydration, but you are not likely to ever reach that point without deliberately trying. While we do use water chemically, we also use it as a median to carry those wastes out. It’s like oil in a car. The car doesn’t use the oil directly and any oil you put in you’re going to get back out (for the most part) but that doesn’t mean your car isn’t putting it to use and that oil is wasted.
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