Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
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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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Men who kiss their wives in the morning live five years longer than those who don't.
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8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
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Historically, sweat has been an active ingredient in perfume and love potions.
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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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When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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