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Professor Dag Aarsland

Professor of Old Age Psychiatry

Specialising in Dementia and Memory Assessment, Alzheimer's Disease and Lewy Body Dementia, Parkinson's Disease Dementia

Professor Dag Aarsland is Professor of Old Age Psychiatry at King's College London, with more than 30 years' experience in the diagnosis and treatment of memory and brain-health conditions. Internationally recognised as a leading authority on the early diagnosis of Alzheimer's disease, dementia with Lewy bodies and Parkinson's disease dementia, he received the Alzheimer's Association's 2026 Inge Grundke-Iqbal Award for Alzheimer's Research, presented in London.

About Me

With over 600 peer-reviewed publications and leadership of major international research programmes, I aim to combine rigorous academic work with a compassionate, patient-centred approach. At Eton Brain Health, I offer precision assessment using advanced neuroimaging and blood-based biomarkers to identify cognitive change at its earliest and most treatable stage.

Throughout my career, my focus has been a single question: how do we detect changes in brain health early enough to make a real difference for patients and their families? As Professor and Head of the Department of Old Age Psychiatry at King's College London, and Director of its Centre for Healthy Brain Ageing, I have spent more than three decades studying how memory and thinking change with age — and, crucially, how to tell ordinary ageing apart from the earliest signs of a treatable condition.

Much of my research has concentrated on dementia with Lewy bodies and Parkinson's disease dementia. I founded the European DLB Consortium, contributed to the international diagnostic criteria clinicians use today, and helped establish rivastigmine as a treatment for Parkinson's-related dementia. I now lead PREDICTOM, a major European programme using artificial intelligence and biomarkers to detect Alzheimer's disease before significant memory loss begins. In July 2026, I received the Alzheimer's Association's Inge Grundke-Iqbal Award for Alzheimer's Research, presented in London.

At Eton Brain Health, I bring that same evidence base to individual patients. I understand that memory concerns are frightening, and that uncertainty is often the hardest part. My role is to provide clarity — an accurate, thorough assessment using the best available neuroimaging and biomarker tools, followed by a clear, personalised plan. Whether the outcome is reassurance, early intervention or ongoing support, my commitment is to give patients and their families honest answers and expert care.