Cyanide works by making the human body unable to use oxygen.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.
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Asthma cases in Americans are about 75% higher today than they were in 1980.
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People about to have surgery must tell their health care providers about all supplements they take.
Male South American Knob-billed Duck (S. m. sylvicola)
Older adults may grieve intensely over the loss of a person or situation that has been a part of the