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
Studies show that the risk of a “secret love” being revealed heightens romantic feelings for the partners, thanks to increased levels of phenylethylamine (PEA).
99
Two in five people in the world marry their first love.
270
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
212
If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
634
Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
103
The typical person spends about 600 hours having sex between the ages of 20 and 70.
234