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
Many people in parts of China eat insects. Some common insects are bean worms, scoprions, and locusts.
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Children's sense of smell is better than adults'.
860
One in 500 humans has one blue eye and one brown eye.
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Forty percent of Americans have never visited a dentist.
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Roughly a quarter of the world's people live in China.
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A study had men report their own penis size, and the average was found to be 6.1-6.5 inches. A subsequent clinical study actually measured penises, and found the average size to be 5.1-5.7 inches.
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