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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Roughly a quarter of the world's people live in China.
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Women end up digesting most of the lipstick they apply.
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Intelligent men tend to be more sexually faithful.
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On average a woman has 4 sexual partners in her lifetime.
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Only 2% of the Earth's population are natural redheads.
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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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