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How is Lewy body dementia (LBD) different from Parkinson's or Alzheimer's?

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Lewy body dementia may not cause short-term memory loss like Alzheimer’s. People with both conditions have trouble with thinking, alertness, and paying attention. But in LBD, those problems come and go. The disease can also cause hallucinations, often in the first few years someone has LBD. People with Alzheimer’s usually don’t have hallucinations until the later stages.

People with LBD also often act out their dreams and make violent movements when they’re asleep. It’s called REM sleep behavior disorder. Sometimes, it’s the first sign that someone has LBD.

LBD and Parkinson’s disease both cause movement problems, like stiff muscles and tremors. But most people with Parkinson’s don’t have problems with their thinking and memory (dementia) until the very later stages of their disease. Sometimes, they don’t have it at all. In the type of LBD known as Parkinson’s disease with dementia, these problems begin much sooner.

People with LBD also need different drugs for their condition than the ones that treat Parkinson’s or Alzheimer’s.

From: What Is Lewy Body Dementia? WebMD Medical Reference

SOURCES:

Lewy Body Dementia Association.

National Institute on Aging.

University of California, San Francisco: “Lewy Body Dementias.”

Alzheimer’s Association.

 

Reviewed by Neil Lava on May 19, 2019

SOURCES:

Lewy Body Dementia Association.

National Institute on Aging.

University of California, San Francisco: “Lewy Body Dementias.”

Alzheimer’s Association.

 

Reviewed by Neil Lava on May 19, 2019

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What causes Lewy body dementia (LBD)?

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