Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
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'X' became symbolic for a kiss because in the middle ages when alot of people were illiterate and they used to sign documents with an X and then kiss it for sincerity.
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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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Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
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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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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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40% of people who are rejected in romantic love slip into clinical depression.
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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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