Improving air quality may improve cognitive function and reduce dementia risk, according to several studies by the Alzheimer’s Association International Conference (AAIC) 2021.
Previous reports have linked long-term air pollution exposure with the accumulation of Alzheimer’s disease-related brain plaques, but this is the first accumulated evidence that reducing pollution, especially fine particulates in the air and pollutants from the burning of fuel, is associated with a lower risk of all-cause dementia and Alzheimer’s disease.
Both increasing levels of air pollution and increasing cases of dementia are worldwide public health crises. While research has linked air quality and cognition previously, these new data at AAIC 2021 explore how air pollutants might impact dementia and what reducing them might mean for long-term brain health.
“We’ve known for some time that air pollution is bad for our brains and overall health, including a connection to amyloid buildup in the brain,” said Claire Sexton, DPhil, Alzheimer’s Association director of scientific programs and outreach. “But what’s exciting is we’re now seeing data showing that improving air quality may actually reduce the risk of dementia. These data demonstrate the importance of policies and action by federal and local governments, and businesses, that address reducing air pollutants.”
Edited by Maryssa Gordon, Senior Editor, Price of Business Digital Network
