Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
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When dragonflies mate, their tails form a love heart.
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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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Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
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Cuddling (or other ‘love’ acts) helps to heal physical wounds faster due to the release of Oxytocin which is proven to reduce swelling.
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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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Holding hands with someone you love can alleviate physical pain as well as stress and fear.
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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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