Yawns are more contagious among people with closer relationships.
163
Historically, sweat has been an active ingredient in perfume and love potions.
309
Women rate men more attractive if other women are looking and smiling at him.
17
Raj from the Big Bang Theory is married to Miss India.
11
Men fall in love faster than women do.
32
Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
69