Historically, sweat has been an active ingredient in perfume and love potions.
309
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
Two in five people in the world marry their first love.
270
The single biggest predictor of love is proximity.
30
The average person in their lifetime will spend an estimated 20,160 minutes kissing!
212
Raj from the Big Bang Theory is married to Miss India.
11
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
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14