Vladimir Hachinski, CM, MD (University of Toronto), DSc (London), FRCPC, FCAHS, FRSC, Doctor honoris causa4 is Professor of Neurology and Epidemiology, Distinguished University Professor at Western University, and Scientist at the Robarts Research Institute, Canada. He has made major contributions to the understanding, diagnosis, treatment, and prevention of stroke and dementia. He founded, with John W Norris, the world’s first successful acute stroke unit, now the standard of care and with Fiona Webster, showed that stroke prevention clinics work. He introduced a clinical diagnostic tool, the Hachinski Ischemic Score for identifying the treatable components of dementia. He was Editor-in-Chief of Stroke, the leading publication in the field. He introduced 9 international editions and a unique author mentorship program. He has published 17 books, including Stroke: A Comprehensive Guide to Brain Attacks for the public co-authored with his daughter Larissa Hachinski and Treatable and Potentially Preventable Dementias that has been Highly Commended by the British Medical Association and over 1000 scientific articles. He was Chair of Western’s Department of Clinical Neurological Sciences, Founding President of the International Society of Vascular Behavioral and Cognitive Disorders and President of the World Federation of Neurology. In 2010 was awarded the International BIAL Merit Award in Medical Sciences. In 2017 he received the international Prince Mahidol Award in Public Health and in 2018 was inducted in the Canadian Medical Hall of Fame. In 2020 he received the FNG Starr Medal. The Canadian Medical Association’s highest award for “outstanding and inspiring lifetime achievement”. He showed a decrease in the incidence of dementia in Ontario. He put together a multidisciplinary team funded to answer the question: We are preventing some dementias now, but how? and help apply the lessons Canada wide and beyond. In 2022 he was awarded the POTAMKIN Prize considered the Nobel Prize in dementia.