Accelerating scientific discovery has sharpened our understanding of Alzheimer’s disease. In response to the pace of insight, the National Institute on Aging (NIA) and the Alzheimer’s Association convened three workgroups to explore the need for new diagnostic criteria that reflect the full clinical continuum of the disease from its earliest effects to its eventual impact on mental and physical function. The new guidelines, revised to reflect input from the professional community at large, are now published as free-access papers in Alzheimer’s and Dementia: The Journal of the Alzheimer’s Association and are available as PDFs here.