The Alzheimer’s Association is the leading voluntary health organization in Alzheimer care, support and research. The Alzheimer's Association Miami Valley Chapter serves a nine-county area in the Dayton region, including Champaign, Clark, Darke, Greene, Logan, Miami, Montgomery, Shelby and Preble counties. Our Mission: To eliminate Alzheimer's disease through the advancement of research; to provide and enhance care and support for all affected; and to reduce the risk of dementia through the promotion of brain health. Our Vision: A world without Alzheimer's disease.