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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When dragonflies mate, their tails form a love heart.
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Men who kiss their wives in the morning live five years longer than those who don't.
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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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When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
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One in five long-term love relationships began with one or both partners being involved with others.
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The typical person spends about 600 hours having sex between the ages of 20 and 70.
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