Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
Couples' personalities converge over time to make partners more and more similar.
235
You burn 26 calories in a one minute kiss.
605
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.
27
Parents receive 1 out of every 5 Valentines.
20
If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
634
Historically, sweat has been an active ingredient in perfume and love potions.
309
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
16