Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Facioscapulohumeral muscular dystrophy ?
    ### Response:
    Facioscapulohumeral muscular dystrophy is a disorder characterized by muscle weakness and wasting (atrophy). This condition gets its name from the areas of the body that are affected most often: muscles in the face (facio-), around the shoulder blades (scapulo-), and in the upper arms (humeral).
    