Boys who have unusual first names are more likely to have mental problems than boys with conventional names. Girls don't seem to have this problem.
131
The first man to swim the length of Great Britain grew a beard to stop jellyfish stinging his face.
16
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
Females learn to talk earlier, use sentences earlier, and learn to read more quickly than males.
119
Every three seconds, a new baby is born.
122
Roughly a quarter of the world's people live in China.
50
The “cheerleader effect”, the theory that girls look more attractive in groups, is scientifically proven.
8