Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
The single biggest predictor of love is proximity.
30
In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
456
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
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
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
Couples' personalities converge over time to make partners more and more similar.
235