This document provides information about dementia and Alzheimer's disease, including common symptoms, treatments, and tips for distinguishing normal aging from disease. Dementia is an umbrella term for cognitive decline, and symptoms may include memory loss, changes in mood and behavior, and difficulties with tasks. Alzheimer's disease is the most common cause of dementia. It involves progressive brain cell failure and symptoms like memory loss that affects daily life. While dementia cannot be cured, treatments can help manage symptoms. Getting an accurate diagnosis is important to provide optimal care. A support system is also key for coping after a diagnosis.