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.
28
Couples' personalities converge over time to make partners more and more similar.
235
In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
456
Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
103
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
Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
88
Historically, sweat has been an active ingredient in perfume and love potions.
309
40% of people who are rejected in romantic love slip into clinical depression.
72