Parkinson’s affects about 1 million Americans It’s estimated that 1 million Americans have Parkinson’s disease. It’s a neurological disorder typically seen in older adults — affecting about 2% of people over age 65. About 50 – 80% of people with Parkinson’s develop Parkinson’s disease dementia, but the dementia symptoms usually take 10 – 15 years to appear. We explain what Parkinson’s disease…