Two in five people in the world marry their first love.
270
Historically, sweat has been an active ingredient in perfume and love potions.
309
Couples' personalities converge over time to make partners more and more similar.
235
You burn 26 calories in a one minute kiss.
605
The single biggest predictor of love is proximity.
30
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
The average person will go on a date at least 100 times before they finally marry.
33