Yawns are more contagious among people with closer relationships.
163
Men fall in love faster than women do.
32
A man is more likely to get a woman's phone number if he is accompanied by a dog.
20
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
40% of people who are rejected in romantic love slip into clinical depression.
72
Intelligent men tend to be more sexually faithful.
31
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
Historically, sweat has been an active ingredient in perfume and love potions.
309