There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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A man's beard grows fastest when he anticipates sex.
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Couples' personalities converge over time to make partners more and more similar.
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The average person in their lifetime will spend an estimated 20,160 minutes kissing!
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For Valentine's Day 2014, an unnamed man sabotaged a special screening of "Beijing Love Story" at a Shanghai cinema by booking every other seat, subsequently preventing couples from sitting together.
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'X' became symbolic for a kiss because in the middle ages when alot of people were illiterate and they used to sign documents with an X and then kiss it for sincerity.
255
Two in five people in the world marry their first love.
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According to the New York Times, a study conducted during the 1980's found that men who kiss their wives before leaving for work live longer, get into fewer car accidents, and have a higher income than married men who don't.
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