If you're over 100 years old, there's an 80% chance you're a woman.
143
Roughly a quarter of the world's people live in China.
50
One million Americans, about 3,000 each day, take up smoking each year. Most of them are children.
-86
Most people smile when they are frustrated, according to a study.
15
The name "Wendy" was made up for the book Peter Pan!
142
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
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191