Cross‐Sectional Links between Baseline Serum Cortisol Levels and Cognitive Performance, Sleep, and Brain MRI Findings in a Rural Aging South‐Indian Cohort

Abstract

Background: This study examined the relationship between baseline serum cortisol levels and cognitive performance in aging populations, an area with mixed findings in prior research. Some studies have linked higher cortisol levels with poorer cognition and lower brain volumes, while others found no association.