Tau tangles may hijack brain's energy, linking early sleep loss to Alzheimer's changes
Medical Xpress
March 3, 2026
Scientists at the University of Kentucky have uncovered a new reason why people with Alzheimer's disease often struggle with sleep, long before memory loss begins. The study, led by researchers at the Sanders-Brown Center on Aging, reveals that a protein called tau "hijacks" the brain's energy supply, keeping the brain in a state of overactive excitability that prevents restorative rest.
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Originally published on Medical Xpress on 3/3/2026