Dec 31, · Alzheimer's disease is the most common cause of dementia in older adults. Other dementias include Lewy body dementia, frontotemporal disorders, and vascular dementia. It is common for people to have mixed dementia —a combination of two or more types of dementia. For example, some people have both Alzheimer's disease . Why do old people get dementia? - Quora.
For example, older adults with dementia may have Alzheimer’s and vascular dementia. Vascular Contributions to Cognitive Impairment and Dementia Vascular contributions to . Apr 05, · Alzheimer’s disease is the most common type of dementia. Though dementia mostly affects older adults, it is not a part of normal aging. How common is dementia? Of those at least 65 years of age, there is an estimated million adults with dementia .