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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Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
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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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Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
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Parents receive 1 out of every 5 Valentines.
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A man's beard grows fastest when he anticipates sex.
239
A Korean man called Lee Jin-gyu fell in love with his large, huggable pillow and married it.
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