Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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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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The average person will go on a date at least 100 times before they finally marry.
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Wearing red increases attraction.
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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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Men who kiss their wives in the morning live five years longer than those who don't.
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In Korea, if you do not receive any gift on Valentine's day then all the singles go to Korean restaurants and eat black noodles to celebrate (or mourn) their single status.
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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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