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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Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
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In Korea, if you do not receive any gift on Valentine's day then all the singles go to Korean restaurants and eat black noodles to celebrate (or mourn) their single status.
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Studies show that the risk of a “secret love” being revealed heightens romantic feelings for the partners, thanks to increased levels of phenylethylamine (PEA).
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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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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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Men who kiss their wives in the morning live five years longer than those who don't.
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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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