Paper Title: Parkinson disease - a review
Authors: Okunoye O.C., Otike-Odibi B.
Parkinson disease (PD) is one of the most common neurodegenerative diseases of insidious onset in middle or late age. It is characterized by slowly progressive akinesia, rigidity, tremor and postural instability. It occurs in all ethnic groups. PD affects both sexes and becomes increasingly common with advancing age. PD is probably a result of multiple factors acting together, including ageing, genetic susceptibility, and environmental exposures. PD affects many aspects of patients life outside the characteristic motor features, which are the main focus of routine treatment by many clinicians. Non-motor features such as depression, psychosis and cognitive impairment also occur.