Why is that water is needed to live as opposed to alternative liquids? If coffee is just bean-flavoured water, why couldn’t you survive by only drinking coffee? If you were lost on a desert island and had only coffee, juice or soda to drink, could you survive?
In: Biology
Water is needed by the body because your body is made of mostly water. Every cell has water in it, and that needs to be replenished as you do things like spit, sweat, urinate, or masturbate.
So, why is coffee a bad idea for your only source of replenishment? Because coffee is a diuretic. It makes you pee more, which causes you to lose more water, counteracting the positive benefits of drinking the coffee.
Juice and sodas are a little better, but not by much. Pure clean water, especially in an environment where you will be doing a lot of physical work and sweating, is going to be vital.
In the real world, you can get by drinking only soda, if you don’t do a lot to lose water, like if you work in an air conditioned office. On a desert island? You’d be dead.
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