Sleep Duration Associations with CSF-Tissue Coupling Flexibility and Circadian Synchronization: An Observational Study of Glymphatic-Related Dynamics. Kwon M J, Kim J, Kim J, Jo S, Choi Y, Kim J, Kim D-H, Han J W, Kim K W Sleep. 2026 Jun 11. PMID: 42275085. Abstract CommentRecommendBookmarkWatch