In 2005, 25 percent of Americans over the age of 50 played video games, an increase from nine percent in 1999.
82
Only about 2% of the world population has green eyes.
36
Americans did not commonly use forks until after the Civil War.
82
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
40% of people who are rejected in romantic love slip into clinical depression.
72