According to the American Society for Microbiology, 90% of women and 75% of men wash their hands after using a public restroom.
170
Americans throw out 4.5 pounds of trash a day - twice that of 40 years ago.
76
Awarding people money for doing well in IQ tests causes them to score better, $10 increased people's score by an average of more than 20 IQ points. IQ tests don’t just measure intelligence - they also measure effort.
9
On average, men's noses are 10% larger than women's.
12
15 percent of Americans secretly bite their toes.
57
The “cheerleader effect”, the theory that girls look more attractive in groups, is scientifically proven.
8
Dutch, on average are the tallest people.
187