What Is Lewy Body Dementia and What Are the Signs To Watch For?

Though it's one of the most common forms of dementia, not many people know what Lewy body dementia is.

By Emilie Le Beau Lucchesi
Jul 25, 2023 6:00 PMAug 10, 2023 4:31 PM
Lewy body dementia: are you at risk? yes or no
(Credit:Yeexin Richelle/Shutterstock)

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Although Lewy body dementia is one of the most common forms of dementia, it’s not exactly a household term, and many people are unfamiliar with it. In the past, many clinicians have also not known much about it or how it’s distinct from other dementia types.

One advocate described how he researched dementia after his wife was diagnosed with Alzheimer’s disease in 1999. He told her physicians he believed his wife had Lewy body dementia and worried her treatment plan might be harmful. Her care team admitted they weren’t familiar with Lewy body dementia, and one even dismissed the possibility by saying, “never heard of it.”

In the past few decades, scientists have learned more about Lewy body dementia. Although there isn’t a cure, proper diagnosis can offer caregivers more direction on assisting their loved ones. 

What Is Lewy Body Dementia?

With Lewy body dementia, a person develops a buildup of alpha-synuclein, a type of protein, in the brain. These deposits are called Lewy bodies and were named after the physician who first identified them in the 1920s, finding them in the brains of people with Parkinson’s disease.

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