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While Alzheimer’s disease is the most common form of dementia, there are also other common types such as vascular dementia, Lewy body dementia and Frontotemporal dementia. There are also rarer types of dementia that are caused by other diseases and conditions.
Some people develop multiple types of dementia; this is known as mixed dementia. It is also possible for a younger person to develop dementia. When a person develops dementia before the age of 65, this is known as young-onset dementia.