Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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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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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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In 2010, Gary Richmond was beaten into a coma. He woke up with amnesia and no memory of his wife of 20 years. Subsequently, he ended up falling in love with her all over again!
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Holding hands with someone you love can alleviate physical pain as well as stress and fear.
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Historically, sweat has been an active ingredient in perfume and love potions.
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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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