How much skin, blood, and saliva humans produce in a lifetime
Tech Insider
2019-10-23
Views 1.5K
The average lifespan for Americans is 78.5 years. Over that time the human body goes on a remarkable journey. To stay alive the human body needs to reproduce, grow and adapt. But just how much skin is replaced? How much salvia is swallowed? and how fast do fingernails actually grow?
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