Men who kiss their wives in the morning live five years longer than those who don't.
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Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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40% of people who are rejected in romantic love slip into clinical depression.
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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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In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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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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One in five long-term love relationships began with one or both partners being involved with others.
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Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
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