Humans blink over 10,000,000 times a year!
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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
The “cheerleader effect”, the theory that girls look more attractive in groups, is scientifically proven.
8
Men are more attracted to women whose bone structure is similar to their own mothers. It's called "sexual imprinting".
18
The world's youngest parents were 8 and 9 and lived in China in 1910.
130
Up to the age of six or seven months a child can breathe and swallow at the same time. An adult cannot do this.
165
In 2005, 25 percent of Americans over the age of 50 played video games, an increase from nine percent in 1999.
82