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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Holding hands with someone you love can alleviate physical pain as well as stress and fear.
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Two in five people in the world marry their first love.
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Sea otters hold hands while sleeping so they don’t drift away from each other.
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There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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The typical person spends about 600 hours having sex between the ages of 20 and 70.
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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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Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
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