When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
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.
14
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
You burn 26 calories in a one minute kiss.
605
Raj from the Big Bang Theory is married to Miss India.
11
Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
88
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130