Only 2% of the Earth's population are natural redheads.
13
Two in five people in the world marry their first love.
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The average American consumes 9 pounds of food additives every year.
6
Women rate men more attractive if other women are looking and smiling at him.
17
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
Approximately one-third of the population can't snap their fingers!
91
Approximately 70,000 people in the U.S. are both blind and deaf!
7