Most people smile when they are frustrated, according to a study.
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35% of the people using personal ads for dating are already married!
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Men laugh longer, louder, and more often than women.
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The world's tallest man reached 8 feet 11 inches at 21.
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The average person walks the equivalent of twice around the world in a lifetime
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There are actually seven different types of twins: Identical, Fraternal, Mirror-Image, Polar Body (Half Identical), Mixed Chromosome, Superfecundation, and Superfetation.
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Intelligent people have more zinc and copper in their hair.
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2% of Europeans lack the genes for smelly armpits.
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