Your heart will pump about 212 million liters in its lifetime.
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When you take a step, you are using up to 200 muscles.
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Every year your body replaces 98% of your atoms.
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Enamel is hardest substance in the human body.
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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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If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
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Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
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An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
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