Historically, sweat has been an active ingredient in perfume and love potions.
309
According to the New York Times, a study conducted during the 1980's found that men who kiss their wives before leaving for work live longer, get into fewer car accidents, and have a higher income than married men who don't.
14
Two in five people in the world marry their first love.
270
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
Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
69
In 2010, Gary Richmond was beaten into a coma. He woke up with amnesia and no memory of his wife of 20 years. Subsequently, he ended up falling in love with her all over again!
44
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
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81