Manganism: Overview
Long-term exposure to high levels of manganese can cause problems with the central nervous system. Exposure can result from inhalation of dust or fumes. The resulting disease is called manganism. Its symptoms include, but may not be limited to, weakness, lethargy, speech disturbances, a mask-like face, paralysis, tremors, and psychological disturbances.
-- Article Courtesy of InjuryBoard.com
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