This a very clear article detailing a clinical trial rolling out the p-tau217 blood test in UK memory clinics. The article is easy to understand and summarises the point of the trial and potential benefits for Alzheimer's disease diagnosis very well. Slight criticisms would be a failure to mention some of the potential challenges in expanding this blood test to an NHS wide diagnostic test and to put this blood test in the context of the new Alzheimer's treatments that have recently been developed (how earlier diagnosis could lead to more effective treatment - although none of the new amyloid based Alzheimer's treatments are currently available on the NHS)