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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Holding hands with someone you love can alleviate physical pain as well as stress and fear.
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A Korean man called Lee Jin-gyu fell in love with his large, huggable pillow and married it.
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Couples' personalities converge over time to make partners more and more similar.
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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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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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'X' became symbolic for a kiss because in the middle ages when alot of people were illiterate and they used to sign documents with an X and then kiss it for sincerity.
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Erotomania is a type of delusion in which the person believes another person is in love with him/her.
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