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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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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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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
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Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.