In the Sea Services (Navy, Marine Corps and Coast Guard), a Mustang is an Officer who has promoted up from the ranks of Navy enlisted personnel through an in... Skip navigation Sign in
What is Alzheimer's disease? Alzheimer's disease is the most common cause of dementia. The word dementia describes a set of symptoms that can include memory loss and difficulties with thinking, problem-solving or language. These symptoms occur when the brain is damaged by certain diseases, including Alzheimer's disease.
Although Alzheimer's disease accounts for 60-70 percent of cases of dementia, other disorders that cause dementia include: Vascular dementia, Parkinson's disease, dementia with Lewy Bodies and Frontotemporal dementia. In the early stages of a disease, there can be some clear differences between the diseases.