I just don’t understand it enough to motivate me to drink enough. Hoping to “see” something in the explanations that will open the floodgates. 🙂
In: Biology
We use water for literally everything. We are water with some stuff holding it in. Our cells are mostly water. Blood is over 90% water, accounting for the water in blood cells. All the liquids we produce – sweat, mucus, tears, etc. – require water. Less eli5, water is the medium in which chemical reactions happen in our bodies.
We need to drink water because it’s constantly used. We lose the water we sweat. We have to constantly replenish our tears and saliva as liquid evaporates on our eyes and in our mouths. A ton of water is used to expel waste. Our cells divide and they need more water as they grow (this is actually huge, about 2/3 of the water in our bodies is in cells.)
You are water. Without water, you’re a vaguely humanoid husk.
Edit: to get a grasp of how important and prevalent water is in organisms on earth, to simplify equations, we commonly approximate the density of living things to the density of water. We are meat. Meat is water. You are water.
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