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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.
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According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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People about to have surgery must tell their health care providers about all supplements they take.