Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
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Every year your body replaces 98% of your atoms.
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If you are cold you are more likely to be hungry because you use energy to keep warm.
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It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
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It takes about 20 seconds for a red blood cell to circle the whole body.
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The human body contains over a billion miles of DNA.
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One human hair can support 3 ounces.
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The human brain has the capacity to store everything that you experience.
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