This document discusses dementia, including its main types such as Alzheimer's disease and strokes. It describes the stages of Alzheimer's from mild changes that could be confused with normal aging to full-time care needs and unresponsiveness. The document also covers that autopsy is the most conclusive way to diagnose Alzheimer's, the proposed causes including genes and health issues, and other dementias such as those from strokes and Parkinson's disease. It raises dealing with the challenges dementia poses for loved ones as caregivers.