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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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Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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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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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.