Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
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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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Speed dating was invented by a Rabbi in 1999.
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Parents receive 1 out of every 5 Valentines.
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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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When dragonflies mate, their tails form a love heart.
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In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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