Couples' personalities converge over time to make partners more and more similar.
235
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
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
Men fall in love faster than women do.
32
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
Historically, sweat has been an active ingredient in perfume and love potions.
309
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
The single biggest predictor of love is proximity.
30