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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

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Excessive alcohol use costs the country approximately $235 billion every year.

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In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

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In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

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