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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Two in five people in the world marry their first love.
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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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8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
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People are more likely to tilt their heads to the right when kissing instead of the left (65 percent of people go to the right!)
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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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'X' became symbolic for a kiss because in the middle ages when alot of people were illiterate and they used to sign documents with an X and then kiss it for sincerity.
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