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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A hard working adult sweats up to 4 gallons per day.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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People who have a strong friendship possess the ability to communicate with one another through facial expressions.
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The “cheerleader effect”, the theory that girls look more attractive in groups, is scientifically proven.
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There's an isolated tribe in Zimbabwe where the people have only two toes, dubbed the 'ostrich people'.
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Only 2% of the Earth's population are natural redheads.
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