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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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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Your thumb is about the same size as your nose.
124
Your tongue is the only muscle in your body that is attached at only one end.
173
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
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