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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.
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Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.
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The average adult has about 21 square feet of skin.
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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.