Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
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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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Erotomania is a type of delusion in which the person believes another person is in love with him/her.
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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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The left ear is more responsive to words of love and emotion whispered into it than the right.
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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 poll has found that computer 'nerds' make the best lovers, with 82 percent of IT geeks claiming they put their partner's pleasure above their own.
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