Alzheimer's and dementia basics . Alzheimer's is the most common form of dementia, a general term for memory loss and other cognitive abilities serious enough to interfere with daily life. Alzheimer's disease accounts for 60 to 80 percent of dementia cases. Learn more: What We Know Today and Understanding Dementia.
Lewy body dementia (LBD) is one of the most common types of dementia, after Alzheimer’s disease. It usually happens to people who are 50 or over. There are two types: Dementia with Lewy bodies often starts when you have a hard time moving your body.
About frontotemporal dementia Arnold Pick, M.D., who described the first case of FTD. The nerve cell damage caused by frontotemporal dementia leads to loss of function in these brain regions, which variably cause deterioration in behavior and personality, language disturbances, or alterations in muscle or motor functions.
Mixed dementia is a term used when a person has more than one type of dementia. Often, mixed dementia consists of Alzheimer's disease and vascular dementia, but it also refers to a combination of Alzheimer's and any other type of dementia. Prevalence of Mixed Dementia. The prevalence of mixed dementia is difficult to determine. Traditionally, clinicians have identified one primary type of dementia when determining a diagnosis for a patient, such as Alzheimer's disease or vascular dementia.
Vascular brain changes often coexist with changes linked to other types of dementia, including Alzheimer's disease and dementia with Lewy bodies. Several studies have found that vascular changes and other brain abnormalities may interact in ways that increase the likelihood of dementia diagnosis.