The single biggest predictor of love is proximity.
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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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Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
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When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
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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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As a rule, 66 percent of people keep their eyes closed while kissing. The rest take pleasure in watching the emotions run the gamut on the faces of their partners.
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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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In Korea, there's a man named Lee Jin-gyu who fell in love and married his life-sized Japanese body pillow (called a "dakimakura").
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