In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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In Korea, there's a man named Lee Jin-gyu who fell in love and married his life-sized Japanese body pillow (called a "dakimakura").
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The average person in their lifetime will spend an estimated 20,160 minutes kissing!
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Sea otters hold hands while sleeping so they don’t drift away from each other.
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Couples' personalities converge over time to make partners more and more similar.
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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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Parents receive 1 out of every 5 Valentines.
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Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
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