There are times when you're walking that the pressure on your feet exceeds your body weight, and when you're running, it can be three or four times your weight.
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Every year your body replaces 98% of your atoms.
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The largest cell in the human body is the female egg and the smallest is the male sperm.
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Your thumb is about the same size as your nose.
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The human body contains over a billion miles of DNA.
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It takes twice as long to lose new muscle if you stop working out than it did to gain it.
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The human brain has the capacity to store everything that you experience.
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