Wildfire smoke is known to negatively impact brain health, with increased exposure associated with a higher risk of dementia. As wildfires become more frequent and intense due to climate change, many people face exposure to unhealthy levels of air pollution. Studies have shown that the tiny particles in wildfire smoke can contribute to cognitive decline and other mental health issues.
New research presented at the Alzheimer’s Association International Conference found that exposure to fine particulate matter from wildfire smoke was linked to a 21% increase in the odds of dementia diagnosis. This evidence adds to a growing body of research showing the harmful effects of wildfire smoke on brain health. Scientists believe that the particles in wildfire smoke can cross the bloodstream-brain barrier, causing inflammation in the central nervous system.
In addition to dementia, exposure to wildfire smoke has been linked to poor performance on cognitive tests and reduced test scores among students. Other potential consequences include increased emergency department visits for anxiety, depression, and psychotic disorders. While the full extent of the impact of wildfire smoke on brain health is still unclear, experts recommend taking precautions to reduce exposure, such as avoiding outdoor activities in areas with high levels of pollution, closing windows, running indoor air filters, and wearing an N95 mask when necessary.
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