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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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Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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There are 20 feet of blood vessels in each square inch of human skin.
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Excessive alcohol use costs the country approximately $235 billion every year.