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.
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One in 500 humans has one blue eye and one brown eye.
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On average women can hear better than men.
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Women have a slightly higher average IQ than men.
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Nearly 10% of American households dress their pets in Halloween costumes.
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In 2005, 25 percent of Americans over the age of 50 played video games, an increase from nine percent in 1999.
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Girls have more tastebuds than boys.
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