Half of all Americans over the age of 55 have no teeth.
39
Children grow faster in the springtime than any other season during the year.
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Approximately 4 to 5% of the U.S. population has one or more clinically significant phobias in a given year. Specific phobias occur in people of all ages. The average age of onset for social phobia is between 15 and 20 years of age, although it can often begin in childhood.
30
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
Only 2% of the worlds population is blonde.
15
Women who read romance novels have sex twice as often as those who don't.
101
Infants spend more time dreaming than adults do.
102
Senegalese women spend an average of 17.5 hours a week just collecting water.
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