Nearly 10% of American households dress their pets in Halloween costumes.
36
Infants spend more time dreaming than adults do.
102
Babies crawl an average of 200m a day.
212
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
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
More than half the population of Kenya is under the age of 15.
71
Children grow faster in the springtime than any other season during the year.
108
Women have a slightly higher average IQ than men.
164