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The risk factors for Parkinson’s dementia include gender, ethnicity, age, genetics, head injuries and environmental factors, such as exposure to toxins. Common symptoms of Parkinson’s dementia include declining memory functions, tremors, slow shuffling gait, muscle rigidity, gait disturbance, bradykinesia, hallucinations, depression, anxiety, trouble interpreting visual information, sleep disturbances, and personality and behavioral changes.

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