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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When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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The average person in their lifetime will spend an estimated 20,160 minutes kissing!
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A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
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Holding hands with someone you love can alleviate physical pain as well as stress and fear.
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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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You burn 26 calories in a one minute kiss.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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