47% of people have a nightmare at least once a month.
186
Intelligent people have more zinc and copper in their hair.
233
Dutch, on average are the tallest people.
187
The average woman uses her height in lipstick every 5 years.
146
The typical person spends about 600 hours having sex between the ages of 20 and 70.
234
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Only about 2% of the world population has green eyes.
36
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