Overview

• A new study finds that people exposed to higher levels of PM2.5 air pollution show more signs of Alzheimer's disease in their brain tissue.
• The research, conducted on brain tissue from 224 donors in Atlanta, indicates a strong association between traffic-related air pollution and Alzheimer's disease signs.
• Individuals not genetically predisposed to Alzheimer's showed a stronger association with the disease when exposed to high levels of traffic-related air pollution.
• Experts emphasize the need for more research to understand the exact connection between air pollution and cognitive decline.
• The study highlights air pollution as a significant health equity issue, disproportionately affecting poorer communities and communities of color.