When dragonflies mate, their tails form a love heart.
22
Erotomania is a type of delusion in which the person believes another person is in love with him/her.
38
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
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 Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
You burn 26 calories in a one minute kiss.
605
Two in five people in the world marry their first love.
270