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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.
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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.