The single biggest predictor of love is proximity.
30
People are more likely to tilt their heads to the right when kissing instead of the left (65 percent of people go to the right!)
278
As a rule, 66 percent of people keep their eyes closed while kissing. The rest take pleasure in watching the emotions run the gamut on the faces of their partners.
687
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
The average person will go on a date at least 100 times before they finally marry.
33
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39