Yawns are more contagious among people with closer relationships.
163
As a rule, 66 percent of people keep their eyes closed while kissing. The rest take pleasure in watching the emotions run the gamut on the faces of their partners.
687
Men fall in love faster than women do.
32
Women who play video games tend to have more sex and be happier with their relationships than those who don’t.
18
Historically, sweat has been an active ingredient in perfume and love potions.
309
A man is more likely to get a woman's phone number if he is accompanied by a dog.
20
Women rate men more attractive if other women are looking and smiling at him.
17