Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
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There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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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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Couples' personalities converge over time to make partners more and more similar.
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It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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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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Twenty nine percent of women spend more time shopping for shoes than they do looking for a life long mate.
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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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