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Dementia is a general term for loss of memory and other mental abilities severe enough to interfere with daily life. It is caused by physical changes in the brain. Alzheimer's is the most common type of dementia, but there are many kinds.


These were now termed multi-infarct dementias or vascular dementias. In the 21st century, a number of other types of dementia have been differentiated from Alzheimer's disease and vascular dementias (these two being the most common types).


But as understanding of the brain has grown, science has been able to identify and differentiate many causes of dementia. Alzheimer’s is the most common type of dementia, but other brain disorders can and do frequently cause dementia. These types of dementia often present themselves with very similar symptoms.


Below are the most common types of dementia listed in order of how commonly they are seen. All are progressive dementias, meaning they get worse over time, and tend to be seen most often in older age groups. Please note, it is possible for a person to have more than one type of dementia at the same time.


This is the third most common form of dementia and is caused by build-ups of a certain type of protein in the brain. These deposits are called Lewy bodies and they effect a person’s perception, behavior, and thinking. Lewy bodies are often found in Parkinson’s disease and Alzheimer’s patients, making this form of dementia harder to diagnose.


Some dementias, such as those caused by a reaction to medications or vitamin deficiencies, might improve with treatment. Progressive dementias. Types of dementias that progress and aren't reversible include: Alzheimer's disease. In people age 65 and older, Alzheimer's disease is the most common cause of dementia.


Alzheimer's disease is the most common type of dementia. Learn about other dementias, including Lewy body dementia, frontotemporal disorders, vascular dementia, and mixed dementia.


The dementia symptom that's most common with this condition is a problem with memory. Usually a person's problem-solving and thinking skills aren't affected. WebMD Medical Reference Reviewed by ...


Alzheimer’s disease is the most common type of dementia, accounting for 60 percent to 80 percent of cases. Vascular dementia (also called multi-infarct dementia, post-stroke dementia, or vascular cognitive impairment) is the second most common type after Alzheimer’s.


In the case of most progressive dementias, including Alzheimer's disease, there is no cure and no treatment that slows or stops its progression. But there are drug treatments that may temporarily improve symptoms. The same medications used to treat Alzheimer's are among the drugs sometimes prescribed to help with symptoms of other types of ...