Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Transient Ischemic Attack ?
    ### Response:
    A transient ischemic attack (TIA) is a transient stroke that lasts only a few minutes. It occurs when the blood supply to part of the brain is briefly interrupted. TIA symptoms, which usually occur suddenly, are similar to those of stroke but do not last as long.
    