Cutting air pollution levels ‘improves brain function and lowers risk of dementia’, studies suggest

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9-8-2021 The Indipendant

Result suggest biological link between air quality and physical brain changes that define Alzheimer’s

Reducing levels of air pollution may improve cognitive function and reduce the risk of dementia, according to a series of reports released by the US Alzheimer’s Association.

Though previous research has established links between exposure to long-term air pollution and Alzheimer’s disease – the most common cause of dementia – the new research is the first broad body of evidence showing that reducing pollution, especially fine particulate matter (PM2.5) in the air and pollutants from the burning of fossil fuels, is associated with lower risk of all-cause dementia and Alzheimer’s disease.

Worsening air quality around the world due to urbanisation and industrialisation in recent decades means the increasing cases of dementia have become an international health crisis, according to scientists attending the Alzheimer’s Association International Conference 2021 in Denver.

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