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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In Ancient Greece, small penises were desirable, and big ones were for ‘old men and barbarians’
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If your DNA was stretched out it would reach to the moon 6,000 times.
256
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
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For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
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There are about 1,400 different species of bacteria in your belly button.
10