Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
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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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Speed dating was invented by a Rabbi in 1999.
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Couples' personalities converge over time to make partners more and more similar.
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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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When dragonflies mate, their tails form a love heart.
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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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