Types of dementia

There are over 100 forms of dementia, with the most well-known form of dementia being Alzheimer’s disease.

There are a large number of underlying conditions which cause the symptoms of dementia, as a result of changes that happen in the brain and the ultimate loss of nerve cells (neurons).

The most common causes are:

The boundaries between the different types are not necessarily distinct. Alzheimer’s disease and vascular dementia are responsible for up to 90% of cases of dementia.