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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Yawns are more contagious among people with closer relationships.
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You can only remember 4 things at a time.
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Approximately 70,000 people in the U.S. are both blind and deaf!
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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.
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A hard working adult sweats up to 4 gallons per day.
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