Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) alternating hemiplegia of childhood ?
    ### Response:
    Alternating hemiplegia of childhood is a neurological condition characterized by recurrent episodes of temporary paralysis, often affecting one side of the body (hemiplegia). During some episodes, the paralysis alternates from one side of the body to the other or affects both sides at the same time.
    