Most people smile when they are frustrated, according to a study.
15
Only 2% of the worlds population is blonde.
15
In 2005, 25 percent of Americans over the age of 50 played video games, an increase from nine percent in 1999.
82
Half of all Americans over the age of 55 have no teeth.
39
Only about 2% of the world population has green eyes.
36
According to the American Society for Microbiology, 90% of women and 75% of men wash their hands after using a public restroom.
170