The single biggest predictor of love is proximity.
30
Men fall in love faster than women do.
32
You burn 26 calories in a one minute kiss.
605
One in five long-term love relationships began with one or both partners being involved with others.
177
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
For Valentine's Day 2014, an unnamed man sabotaged a special screening of "Beijing Love Story" at a Shanghai cinema by booking every other seat, subsequently preventing couples from sitting together.
41
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
Two in five people in the world marry their first love.
270