It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
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
Historically, sweat has been an active ingredient in perfume and love potions.
309
Yawns are more contagious among people with closer relationships.
163
Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
69
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23