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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
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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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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.
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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.