Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
A poll has found that computer 'nerds' make the best lovers, with 82 percent of IT geeks claiming they put their partner's pleasure above their own.
464
Men fall in love faster than women do.
32
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
Two in five people in the world marry their first love.
270
If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
634