Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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Raj from the Big Bang Theory is married to Miss India.
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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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A man's beard grows fastest when he anticipates sex.
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The average person in their lifetime will spend an estimated 20,160 minutes kissing!
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Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
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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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