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The familiar sounds of your heart are made by the heart's valves as they open and close.
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Cyanide works by making the human body unable to use oxygen.
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Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.
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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.