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The average office desk has 400 times more bacteria on it than a toilet.
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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
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During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.
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The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.