Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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Rex the German Shepherd was a rescue dog with a bad temper. He refused to be fed by humans and would attack strangers, but he’s a changed dog after falling in love with Geraldine the goose!
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It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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For Valentine's Day 2014, an unnamed man sabotaged a special screening of "Beijing Love Story" at a Shanghai cinema by booking every other seat, subsequently preventing couples from sitting together.
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The single biggest predictor of love is proximity.
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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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Speed dating was invented by a Rabbi in 1999.
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