Men fall in love faster than women do.
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Two in five people in the world marry their first love.
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Kissing an infection-free partner is good for your teeth!
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You burn 26 calories in a one minute kiss.
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Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
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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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In Korea, if you do not receive any gift on Valentine's day then all the singles go to Korean restaurants and eat black noodles to celebrate (or mourn) their single status.
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