This document provides an overview of Parkinson's disease (PD), including its history, epidemiology, causes, diagnosis, symptoms, course, treatment, and management of motor complications. It discusses how PD was first described in 1817 and named in 1865. The main symptoms are bradykinesia, tremors, and rigidity. Treatment initially involves carbidopa/levodopa but may require additional medications as the disease progresses and medications begin wearing off more quickly or causing dyskinesia. Surgical treatments like deep brain stimulation may be considered if medications are no longer effective or can't be increased further.