Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
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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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Raj from the Big Bang Theory is married to Miss India.
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The single biggest predictor of love is proximity.
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In 2012, a Chinese man named Xiao Fan had a dress made out of 9,999 red roses for his girlfriend and then proposed - 9 in China means forever
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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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The average person in their lifetime will spend an estimated 20,160 minutes kissing!
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Men fall in love faster than women do.
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