Men who kiss their wives in the morning live five years longer than those who don't.
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You burn 26 calories in a one minute kiss.
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40% of people who are rejected in romantic love slip into clinical depression.
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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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Couples' personalities converge over time to make partners more and more similar.
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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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If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
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In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
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