Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
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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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Men who kiss their wives in the morning live five years longer than those who don't.
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A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
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Holding hands with someone you love can alleviate physical pain as well as stress and fear.
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The average person in their lifetime will spend an estimated 20,160 minutes kissing!
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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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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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