40% of people who are rejected in romantic love slip into clinical depression.
72
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
The average person will go on a date at least 100 times before they finally marry.
33
People are more likely to tilt their heads to the right when kissing instead of the left (65 percent of people go to the right!)
278
The average person in their lifetime will spend an estimated 20,160 minutes kissing!
212
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
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
Historically, sweat has been an active ingredient in perfume and love potions.
309