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Results 1 - 2 of 2 for Natural environment
  1. Environmental Health (National Library of Medicine)  
    ... Some environmental risks are a part of the natural world, like radon in the soil. Others are the result of human activities, like lead poisoning from paint, or exposure to asbestos or mercury from mining or industrial use. NIH: National Institute of Environmental Health Sciences
  2. Migraine (National Library of Medicine)  
    ... not enough sleep Sudden changes in weather or environment Overexertion (too much physical activity) Tobacco Caffeine or ... which drug would be right for you. Certain natural treatments, such as riboflavin (vitamin B2) and coenzyme ...