Someone on Earth reports seeing a UFO every three minutes.
180
Most people smile when they are frustrated, according to a study.
15
The average American consumes 9 pounds of food additives every year.
6
Children's sense of smell is better than adults'.
860
40% of people who are rejected in romantic love slip into clinical depression.
72
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
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