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Cyanide works by making the human body unable to use oxygen.

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Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

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Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

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