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
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
Historically, sweat has been an active ingredient in perfume and love potions.
309
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
Twenty nine percent of women spend more time shopping for shoes than they do looking for a life long mate.
737
One in five long-term love relationships began with one or both partners being involved with others.
177
A man's beard grows fastest when he anticipates sex.
239