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
You can only remember 4 things at a time.
31
The average person falls asleep in seven minutes.
115
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
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
There's an isolated tribe in Zimbabwe where the people have only two toes, dubbed the 'ostrich people'.
10
More boys than girls are born during the day; more girls are born at night.
120