Sea otters hold hands while sleeping so they don’t drift away from each other.
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Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
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A Korean man called Lee Jin-gyu fell in love with his large, huggable pillow and married it.
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40% of people who are rejected in romantic love slip into clinical depression.
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Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
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Kissing an infection-free partner is good for your teeth!
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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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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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