Holding hands with someone you love can alleviate physical pain as well as stress and fear.
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Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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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 an infection-free partner is good for your teeth!
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For Valentine's Day 2014, an unnamed man sabotaged a special screening of "Beijing Love Story" at a Shanghai cinema by booking every other seat, subsequently preventing couples from sitting together.
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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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Men fall in love faster than women do.
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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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