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Air pollution exposure tied to memory decline, study says

A study published in the journal Brain found that older women exposed to higher fine particle air pollution levels had an increased risk for greater memory decline and more Alzheimer's-like brain structure changes, compared with those who were less exposed to pollution. The findings, based on the brain scans of nearly 1,000 women, may help researchers "develop interventions to help people with or at risk for cognitive decline," researcher Andrew Petkus said.

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