In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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The left ear is more responsive to words of love and emotion whispered into it than the right.
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Two in five people in the world marry their first love.
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The typical person spends about 600 hours having sex between the ages of 20 and 70.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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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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