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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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Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.
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There are 20 feet of blood vessels in each square inch of human skin.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.