Recent findings from a large-scale study involving nearly 28 million individuals have revealed a direct link between long-term exposure to air pollution and an increased risk of Alzheimer's disease, particularly affecting residents of Lahore, where air quality is severely compromised. The study, conducted by Emory University and published in PLOS Medicine, indicates that more than 95% of the increased Alzheimer's risk is attributed directly to polluted air rather than through indirect pathways such as cardiovascular conditions. Specifically, the research highlighted that for every 3.8 micrograms per cubic meter increase in PM2.5 exposure, the risk of developing Alzheimer's disease rises significantly. This alarming statistic underscores the urgency of addressing air quality issues, especially in lower-income communities where pollution levels are often higher. As noted in the study, "In this large national study of older adults, we found that long-term exposure to fine particulate air pollution was associated with a higher risk of Alzheimer's disease, largely through direct effects on the brain rather than through common chronic conditions such as hypertension, stroke, or depression."