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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The single biggest predictor of love is proximity.
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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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If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
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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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Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
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The average person in their lifetime will spend an estimated 20,160 minutes kissing!
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