Associations between physical activity, brain health, cognitive function, and circulating GPLD1 in healthy older (65–85 years) individuals - Marlatt, Kara L.; Lowe, Adam C.; Sanchez-Delgado, Guillermo; Beyl, Robbie A.; Viverito, Matthew K.; Keller, Jeffrey N.; Carmichael, Owen T.; Ravussin, Eric (GeroScience: Official Journal of the American Aging Association (AGE), 2025)