The average person in their lifetime will spend an estimated 20,160 minutes kissing!
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Historically, sweat has been an active ingredient in perfume and love potions.
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A Korean man called Lee Jin-gyu fell in love with his large, huggable pillow and married it.
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Couples' personalities converge over time to make partners more and more similar.
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As a rule, 66 percent of people keep their eyes closed while kissing. The rest take pleasure in watching the emotions run the gamut on the faces of their partners.
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People are more likely to tilt their heads to the right when kissing instead of the left (65 percent of people go to the right!)
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In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
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Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
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