The Earliest Signal of Future Alzheimer's May Have Just Been Revealed <img width="128" height="52" src="https://www.sciencealert.com/images/2024/03/BrainWavesIllustrationOfYellowRimLitGreyMatterAndNeonPurpleWaves.jpg" alt="Illustration of yellow outlines brain with neon purple waves lines streaked through"/> A biomarker found in the brain. https://www.sciencealert.com/the-earliest-signal-of-future-alzheimers-may-have-just-been-revealed