Cohort Studymoderate evidence
Instability of post-respiratory delta activity is associated with neurocognitive dysfunction in obstructive sleep apnea.
Sleep medicine·June 30, 2026·PMID 42419040
Why it mattersConventional OSA severity metrics like AHI often fail to explain cognitive vulnerability. This study identifies a novel EEG marker—post-event delta instability—that may help neurologists and longevity-focused clinicians better stratify patients at risk for cognitive decline and excessive daytime sleepiness beyond standard indices.
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