Studies show that the risk of a “secret love” being revealed heightens romantic feelings for the partners, thanks to increased levels of phenylethylamine (PEA).
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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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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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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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A man's beard grows fastest when he anticipates sex.
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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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8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
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