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Vaccines prevent between 2.5 and 4 million deaths every year.
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On average, the stomach produces 2 L of hydrochloric acid per day.
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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
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Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.
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There are 20 feet of blood vessels in each square inch of human skin.