Dementia is not a specific disease, but rather a group of symptoms that can be caused by various underlying conditions.
The most common cause of dementia is Alzheimer’s disease, but other causes include vascular disease, Parkinson’s disease, Huntington’s disease, and Creutzfeldt-Jakob disease.
Cognition refers to the mental processes that allow us to think, remember, and learn. In dementia, cognition is severely impaired, leading to memory loss, difficulty with language, disorientation, confusion, and changes in mood and behavior
The early stages of dementia may include difficulty remembering recent events, problems with language, and difficulty completing familiar tasks.