Women rate men more attractive if other women are looking and smiling at him.
17
40% of people who are rejected in romantic love slip into clinical depression.
72
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
Yawns are more contagious among people with closer relationships.
163
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
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23