Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Cerebellar Degeneration ?
    ### Response:
    Cerebellar degeneration is a process in which neurons in the cerebellum - the area of the brain that controls coordination and balance - deteriorate and die. Diseases that cause cerebellar degeneration can also involve other areas of the central nervous system,including the spinal cord, medulla oblongata, cerebral cortex, and brain stem.
    