According to the New York Times, a study conducted during the 1980's found that men who kiss their wives before leaving for work live longer, get into fewer car accidents, and have a higher income than married men who don't.
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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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In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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Two in five people in the world marry their first love.
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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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Holding hands with someone you love can alleviate physical pain as well as stress and fear.
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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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