Men who kiss their wives in the morning live five years longer than those who don't.
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When dragonflies mate, their tails form a love heart.
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Two in five people in the world marry their first love.
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Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
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The single biggest predictor of love is proximity.
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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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40% of people who are rejected in romantic love slip into clinical depression.
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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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