When dragonflies mate, their tails form a love heart.
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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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According to the New York Times, a study conducted during the 1980's found that men who kiss their wives before leaving for work live longer, get into fewer car accidents, and have a higher income than married men who don't.
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There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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You burn 26 calories in a one minute kiss.
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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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8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
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