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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Men who kiss their wives in the morning live five years longer than those who don't.
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Speed dating was invented by a Rabbi in 1999.
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Parents receive 1 out of every 5 Valentines.
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If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
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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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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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