Approximately 70,000 people in the U.S. are both blind and deaf!
7
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
Intelligent people have more zinc and copper in their hair.
233
Karl Pillemer, a professor, performed a study on thousands of elderly people and what advice they had about life. On happiness, there was a consensus: “the elders viewed happiness as a choice, not the result of how life treats you.”
13
Yawns are more contagious among people with closer relationships.
163
More than half the population of Kenya is under the age of 15.
71
Half of all Americans over the age of 55 have no teeth.
39