Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
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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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Parents receive 1 out of every 5 Valentines.
20
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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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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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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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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You burn 26 calories in a one minute kiss.
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