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There are 20 feet of blood vessels in each square inch of human skin.
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The horizontal fraction bar was introduced by the Arabs.
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Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.
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Your heart beats over 36 million times a year.
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Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.