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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Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
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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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Twenty nine percent of women spend more time shopping for shoes than they do looking for a life long mate.
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When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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In 2010, Gary Richmond was beaten into a coma. He woke up with amnesia and no memory of his wife of 20 years. Subsequently, he ended up falling in love with her all over again!
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The typical person spends about 600 hours having sex between the ages of 20 and 70.
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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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