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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Every year your body replaces 98% of your atoms.
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Your body is creating and killing about 2.4 million red blood cells per second.
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Our eyes are always the same size from birth, but our nose and ears never stop growing.
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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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The largest cell in the human body is the female egg and the smallest is the male sperm.
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The human body contains over a billion miles of DNA.
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Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
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