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A comprehensive study in The Lancet Planetary Health reveals a significant link between air pollution and dementia risk. Researchers reviewed 51 studies involving over 29 million participants, finding a statistically significant association between three pollutants (PM2.5, nitrogen dioxide, and soot) and dementia. For every 10 micrograms per cubic meter increase in PM2.5, dementia risk rose 17%. The study highlights the need for stronger government action to reduce air pollution and its impact on dementia, a disease affecting millions globally and projected to increase dramatically.

Prepared by Olivia Bennett and reviewed by editorial team.