In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
Erotomania is a type of delusion in which the person believes another person is in love with him/her.
38
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
Historically, sweat has been an active ingredient in perfume and love potions.
309
In Korea, there's a man named Lee Jin-gyu who fell in love and married his life-sized Japanese body pillow (called a "dakimakura").
-2
If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
634
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13