In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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Speed dating was invented by a Rabbi in 1999.
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In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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Wearing red increases attraction.
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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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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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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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Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
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