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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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The average adult has about 21 square feet of skin.
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According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.