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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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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The average person will go on a date at least 100 times before they finally marry.
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Sea otters hold hands while sleeping so they don’t drift away from each other.
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Men fall in love faster than women do.
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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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When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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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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