Long-term exposure to air pollution may harm your brain
American Heart AssociationDALLAS, April 23, 2015 -- Long-term exposure to fine particle air pollution may cause subtle structural changes in the brain that could precede cognitive impairment and hidden brain damage, according to research in the American Heart Association journal Stroke.
Fine particle air pollution - smaller than 2.5 micrometers in diameter (PM2.5) - may be the most common and hazardous type of air pollution. It comes from burning wood or coal, car exhaust and other sources.
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