Two in five people in the world marry their first love.
270
Erotomania is a type of delusion in which the person believes another person is in love with him/her.
38
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
Men who kiss their wives in the morning live five years longer than those who don't.
1k
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
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12