There are two credit cards for every person in the United States.
2
The average American spends a third of their overall time online playing games and using social networks.
298
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
Yu Youzhen, a Chinese millionaire, works as a street sweeper for the sanitation department to set an example for her children.
11
Blonde hair is not exclusive to Europeans. Melanesians of the south Pacific evolved a different gene for blonde hair.
7
Senegalese women spend an average of 17.5 hours a week just collecting water.
27
Intelligent people have more zinc and copper in their hair.
233