Men who kiss their wives in the morning live five years longer than those who don't.
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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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Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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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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People are more likely to tilt their heads to the right when kissing instead of the left (65 percent of people go to the right!)
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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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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