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Vaccines prevent between 2.5 and 4 million deaths every year.
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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
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The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.
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On average, the stomach produces 2 L of hydrochloric acid per day.
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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.