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Rest-Activity Rhythms as Digital Biomarkers: Predicting Relapse in Major Depressive Disorder via Actigraphy

A landmark one-year actigraphy study reveals that sleep phase variability and daily activity amplitude are significant objective markers for predicting MDD relapse, offering a scalable path toward personalized, preventive psychiatric care.

Feb 21, 2026Sign in to read
Neurology

New International Research Recommendations on Sleep and Circadian Measures in Aging and Alzheimer’s Disease

An expert Delphi consensus from ISTAART lays out core data, methods and research priorities to harmonize sleep and circadian studies in aging and Alzheimer’s disease.

Nov 5, 2025

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