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  "path": "/news/2026-03-tau-tangles-hijack-brain-energy.html",
  "publishedAt": "2026-03-03T14:00:07.000Z",
  "site": "https://medicalxpress.com",
  "tags": [
    "Neuroscience"
  ],
  "textContent": "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.",
  "title": "Tau tangles may hijack brain's energy, linking early sleep loss to Alzheimer's changes"
}