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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Your heart will pump about 212 million liters in its lifetime.
26
Chewing gum boosts your brain power.
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Every year your body replaces 98% of your atoms.
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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.
147
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
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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