Vladimir Hachinski, MD (Toronto), DSc (Lond), FRCPC, FRSC, is a Distinguished University Professor, Western University, Canada. He has made major contributions to the understanding, diagnosis, treatment and prevention of stroke and dementia. He has published 18 books and over 850 scientific articles. He was President of the World Federation of Neurology. He introduced the concept of vascular cognitive impairment-the vascular treatable and preventable component of most dementias and devised a method of identifying it (an ischemic score). In 2017 he received the Prince Mahidol Award in Public Health. He leads a Dementia Prevention/Brain Health Initiative.