It's understandable that most people associate Parkinson's with tremors and other motor symptoms. But for some, the disease gives rise to something more terrifying, and much more hidden: psychosis. It is estimated that as many as half of the one million Americans with Parkinson's disease today experience hallucinations, illusions, and delusions over the course of their disease. These symptoms are a signal of disease progression and are very likely to intensify over time which can frighten patients and caregivers alike. In this edition of Healthy Body Healthy Mind, we will explore the mysterious occurrence of psychotic behavior for those dealing with Parkinson's disease.