Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Unverricht-Lundborg disease ?
    ### Response:
    Unverricht-Lundborg disease is a rare inherited form of epilepsy. Affected individuals usually begin showing signs and symptoms of the disorder between the ages of 6 and 15.  Unverricht-Lundborg disease is classified as a type of progressive myoclonus epilepsy.
    