The average person in their lifetime will spend an estimated 20,160 minutes kissing!
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It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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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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Historically, sweat has been an active ingredient in perfume and love potions.
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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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Couples' personalities converge over time to make partners more and more similar.
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There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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