The world's shortest man measures only 21.5 inches.
73
Most people smile when they are frustrated, according to a study.
15
Yawns are more contagious among people with closer relationships.
163
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
In a lifetime, an average person walks the equivalent of 5 equators
177
More than half the population of Kenya is under the age of 15.
71
Every three seconds, a new baby is born.
122
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