Air pollution could be significant cause of dementia – even for those not predisposed | The Guardian

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People in areas of high PM2.5 concentrations had higher amounts of amyloid plaques in brain.

Air pollution from traffic is linked to some of the more severe forms of dementia, and could be a significant cause of the condition among those who are not already genetically predisposed to it, research suggests.

Research carried out in Atlanta, Georgia, found that people with higher exposure to traffic-related fine particulate matter air pollution were more likely to have high amounts of the amyloid plaques in their brains that are associated with Alzheimer’s.

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