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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When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
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A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
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Historically, sweat has been an active ingredient in perfume and love potions.
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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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Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
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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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Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
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