Below is an instruction from Human. Write a response.
    ### Instruction:
    What is the outlook for Transient Ischemic Attack ?
    ### Response:
    TIAs are often warning signs that a person is at risk for a more serious and debilitating stroke. About one-third of those who have a TIA will have an acute stroke some time in the future. Many strokes can be prevented by heeding the warning signs of TIAs and treating underlying risk factors.
    