biostudies-literatureSaenz JLNIA NIH HHS1522-1532https://www.ebi.ac.uk/biostudies/studies/S-EPMC8380681biostudies-literatureUnknown31(5)Studies of air pollution and cognition often rely on measures from outdoor environments. Many individuals in low- and middle-income countries are exposed to indoor air pollution from combustion of solid cooking fuels. Little is known about how solid cooking fuel use affects cognitive decline over time. This study uses data from the 2012, 2015, and 2018 Mexican Health and Aging Study (n = 14 245, age 50+) to assess how use of wood or coal for cooking fuel affects cognition of older adults relative to use of gas. It uses latent change score modeling to determine how using solid cooking fuel affected performance in Verbal Learning, Verbal Recall, Visual Scanning, and Verbal Fluency. Solid cooking fuel was used by 17% of the full sample but was more common in rural areas. Solid fuel users alsoIndoor airSolid cooking fuel use and cognitive decline among older Mexican adults.PMC8380681R01 AG018016R00 AG058799Saenz JLfalseSolid cooking fuel use and cognitive decline among older Mexican adults.Studies of air pollution and cognition often rely on measures from outdoor environments. Many individuals in low- and middle-income countries are exposed to indoor air pollution from combustion of solid cooking fuels. Little is known about how solid cooking fuel use affects cognitive decline over time. This study uses data from the 2012, 2015, and 2018 Mexican Health and Aging Study (n = 14 245, age 50+) to assess how use of wood or coal for cooking fuel affects cognition of older adults relative to use of gas. It uses latent change score modeling to determine how using solid cooking fuel affected performance in Verbal Learning, Verbal Recall, Visual Scanning, and Verbal Fluency. Solid cooking fuel was used by 17% of the full sample but was more common in rural areas. Solid fuel users also2021-01-01T00:00:00Z2021 Sep2025-04-18T15:25:25.165Z2025-04-07T02:00:59.26ZS-EPMC83806813389605110.1111/ina.12844