Parkinson s disease arises due to the degeneration of neurons in the region of the brain that is focused on movement control, particularly the substantia nigra. Other movement disorders include Huntingdon s disease and Rett syndrome, which are genetic disorders. Ataxia is characterised by impaired and clumsy movement. Dystonia is caused by involuntary muscle spasms that occur due to abnormal functioning of a part of the brain, i.e., the basal ganglia, which helps in the control and coordination of movement. The treatment of Parkinson s and other movement disorders is different and tailored to individual needs.