Two in five people in the world marry their first love.
270
Kissing an infection-free partner is good for your teeth!
141
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
Speed dating was invented by a Rabbi in 1999.
45
Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
69
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
40% of people who are rejected in romantic love slip into clinical depression.
72
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