What is Lewy Body dementia?

Lewy body dementia (LBD) is a disease associated with abnormal protein deposits called Lewy bodies. These deposits affect chemicals in the brain whose changes, in turn, can lead to problems with thinking, movement, behavior, and mood. Lewy body dementia is one of the most common causes of dementia. Lewy body dementia is a progressive disease, meaning symptoms start slowly and worsen over time. How quickly symptoms develop and change varies greatly from person to person, depending on overall health, age, and severity of symptoms. Learn more about Lewy body dementia—including causes, symptoms, and treatment options—on our website.   Share this information with others on social media: Lewy body dementia is one of the most common causes of dementia. Learn about its causes, symptoms, and treatment options from the National Institute on Aging at NIH: https://www.nia.nih.gov/health/what-lewy-body-dementia