According to the New York Times, a study conducted during the 1980's found that men who kiss their wives before leaving for work live longer, get into fewer car accidents, and have a higher income than married men who don't.
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Couples' personalities converge over time to make partners more and more similar.
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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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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
Kissing an infection-free partner is good for your teeth!
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It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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