University of Kentucky researchers found the brain’s own immune cells (microglia) drive the sleep loss seen in Alzheimer’s disease. Temporarily switching off about 87% of those cells restored more than two hours of sleep a day – without clearing a single amyloid plaque.
This study was done in mice. The drug used is an approved cancer medicine, not an Alzheimer’s treatment, and nobody should seek it out. This is a promising research direction, not a cure. If sleep is changing for you or someone you love, talk to a doctor.
Study: Constantino et al., Alzheimer’s and Dementia (2026). Lead researcher Dr. Shannon Macauley, University of Kentucky.
Interview clip: LEX 18 News, Lexington KY.
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