An Overview on Dementia: A Major Symptom of Alzheimer's Disease

Abstract

Dementia is a word for an acquired illness in which two or more cognitive abilities are lost due to a brain disease or injury. The most common form of dementia is Alzheimer's type dementia (DAT). It has been associated to cerebral cortical degenerative anomalies. It's also visible in neurologic diseases that primarily affect subcortical systems such as the basal ganglia and brain stem. The causes are plaques of β-amyloid and tangles of intraneuronal tau protein. Dementia is addressed in this overview. Pathophysiology, epidemiology, and different varieties of dementia; contributing factors to dementia; symptoms, causes, diagnosis, prevention, and care; and new breakthroughs in dementia treatment. It also looks at how patients with mental problems coped during the COVID-19 outbreak. Patients may require more therapies to manage their illness, and some future drugs are now being explored. Keywords: Dementia, Alzheimer's, Plaques, Cognitive training, β-amyloid