All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
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If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
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There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
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Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
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Our Right Lungs takes more air than our left lung.
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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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There are about 1,400 different species of bacteria in your belly button.
10