<unk>  <unk>  is one of the most common types of progressive dementia.<unk>  body disease usually begins between the ages of 50 and 85. The disease gets worse over time.
The criteria for<unk>  is dementia symptoms and 2 or 3 of the below:
Parkinsonism: slowness and stiffness
Recurrent detailed visual hallucinations, delusions (false beliefs)
Symptoms fluctuate markedly from day to day
Dementia with Lewy bodies
Multiple system atrophy
Multi-infarct dementia
Semantic dementia
Progressive supranuclear palsy
Early-onset Alzheimer's disease
Pick's disease
Alzheimer's disease