Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
The typical person spends about 600 hours having sex between the ages of 20 and 70.
234
Kissing an infection-free partner is good for your teeth!
141
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
Parents receive 1 out of every 5 Valentines.
20
Two in five people in the world marry their first love.
270
Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
69
The left ear is more responsive to words of love and emotion whispered into it than the right.
44