Circadian rest/activity rhythms and change in MRI‐derived brain volumes: Differences by age in a cognitively healthy sample

Key Points

• The aim is to explore the relationship between circadian rest/activity rhythms and changes in brain volumes, focusing on age variations.
• Analyzed MRI-derived brain volumes of participants
• Focused on medial temporal lobe and global brain volumes
• Considered age as a variable in data interpretation
• Circadian rest/activity rhythms were associated with increased medial temporal lobe and global brain volumes.
• The strength of these associations varied across different age groups.