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
Raj from the Big Bang Theory is married to Miss India.
11
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
Yawns are more contagious among people with closer relationships.
163
Women who play video games tend to have more sex and be happier with their relationships than those who don’t.
18