Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Movement Disorders ?
    ### Response:
    Imagine if parts of your body moved when you didn't want them to. If you have a movement disorder, you experience these kinds of impaired movement. Dyskinesia is abnormal uncontrolled movement and is a common symptom of many movement disorders. Tremors are a type of dyskinesia.
    