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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Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
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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In 2012, a Chinese man named Xiao Fan had a dress made out of 9,999 red roses for his girlfriend and then proposed - 9 in China means forever
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You burn 26 calories in a one minute kiss.
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It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
The single biggest predictor of love is proximity.
30
The average person will go on a date at least 100 times before they finally marry.
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