Children laugh about 400 times a day, while adults laugh on average only 15 times a day.
973
Intelligent people have more zinc and copper in their hair.
233
The higher the income, the more likely an American man will cheat on his wife.
94
You can only remember 4 things at a time.
31
Senegalese women spend an average of 17.5 hours a week just collecting water.
27
Eskimos don't gamble.
78
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11