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What causes Lewy body dementia (LBD)?

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Lewy bodies, named after the scientist who discovered them, are made of a protein called alpha-synuclein. When they build up, they keep your brain from making the right amount of two important chemicals. One of them, called acetylcholine, affects your memory and learning. The other, called dopamine, affects how you move, your mood, and your sleep.

Scientists aren’t sure what makes Lewy bodies start to build up in the brain. They’re also not sure why some people get Lewy body dementia and others don’t.

Some health conditions raise your chance of getting the condition. People with Parkinson’s disease or REM sleep behavior disorder have a higher risk of LBD.

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 are the symptoms of Lewy body dementia (LBD)?

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