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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Sea otters hold hands while sleeping so they don’t drift away from each other.
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The single biggest predictor of love is proximity.
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The average person will go on a date at least 100 times before they finally marry.
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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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Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
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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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When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
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