Poor sleep not just symptom, but potential sign of Alzheimer’s disease

Kerry Taylor-Smith — Fri, 15 May 2026 06:35:22 GMT

Sleep loss is often one of the most challenging symptoms of dementia and Alzheimer’s, affecting patients long before memory loss and a formal diagnosis is made. New research from the University of Kentucky has likened poor sleep to a canary in a coal mine, an early symptom of neurodegeneration that could serve as a potential new biomarker to identify the disease.