Women rate men more attractive if other women are looking and smiling at him.
17
Men fall in love faster than women do.
32
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
Historically, sweat has been an active ingredient in perfume and love potions.
309
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
Yawns are more contagious among people with closer relationships.
163