Water, water everywhere, and not a drop to drink
Dehydration is a killer. But it takes a little while before it gets that bad.
18. The human body needs water – lots of it
Humans need water to survive. You should consume around 2 litres of water a day.
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On average, by the time someone is 70 years old they will have drank a whopping 12,000 gallons of water!
17. Surviving with organs – it’s possible!
Having working organs is of course a healthier way to live. But it is possible to live without several.
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You don’t need a stomach, spleen, 75% of your liver, 80% of your intestines, 1 kidney and 1 lung to survive. But hey, they help!
16. The surface area of the lungs
If one were to spread their lungs out across a flat surface, the total surface area would measure around the same as half a tennis court. And all of that fits comfortably into your body! Wow.
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