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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Raj from the Big Bang Theory is married to Miss India.
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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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In 2012, a Chinese man named Xiao Fan had a dress made out of 9,999 red roses for his girlfriend and then proposed - 9 in China means forever
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Wearing red increases attraction.
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Two in five people in the world marry their first love.
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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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A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
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