Parents receive 1 out of every 5 Valentines.
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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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People are more likely to tilt their heads to the right when kissing instead of the left (65 percent of people go to the right!)
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Wearing red increases attraction.
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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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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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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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