Parkinson's disease (PD) is a chronic and progressive disease that affects as many as one million people in the United States alone. Although many patients and families are aware of the physical challenges that accompany Parkinson's disease, few are prepared to deal with the common behavioral issues that impact their quality of life.Behavior problems in PD are not always catastrophic, but they are common. It is estimated that 65-90% of PD patients experience some level of depression, anxiety, dementia, hallucinations, paranoid delusions, sleep disorders, and other behavioral disorders that aff |