When you take a step, you are using up to 200 muscles.
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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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Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
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The human body contains over a billion miles of DNA.
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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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Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
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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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