Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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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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The average person in their lifetime will spend an estimated 20,160 minutes kissing!
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40% of people who are rejected in romantic love slip into clinical depression.
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Couples' personalities converge over time to make partners more and more similar.
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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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Wearing red increases attraction.
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It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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