Bel Marra Health | Types of dementia: Alzheimer's disease, vascular dementia, dementia with Lewy bodies, and Parkinson's disease Bel Marra Health Types of dementia: Alzheimer's disease, vascular dementia, dementia with Lewy bodies, and Dementia is an umbrella term referring to cognitive decline. There isn't just one type of dementia, and knowing which type a person has can help aid in treatment. Failed Alzheimer's Disease Drug Trial May Be Caused By A Second Underlying Disease |