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
In the presence of attractive women, men find running easier, take more risks, donate more money, consume more calories, and talk more.
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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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Every human spent about half an hour as a single cell.
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On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
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Yawns are more contagious among people with closer relationships.
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One million Americans, about 3,000 each day, take up smoking each year. Most of them are children.
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47% of people have a nightmare at least once a month.
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