Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
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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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In 1999, a fisherman found a love letter in a bottle from a soldier in WWI. He returned said letter to the now deceased widows 86 year old daughter.
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Holding hands with someone you love can alleviate physical pain as well as stress and fear.
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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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Historically, sweat has been an active ingredient in perfume and love potions.
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The average person will go on a date at least 100 times before they finally marry.
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