Task: Answer Verification
Input (English): Question: Is excessive lowering of blood pressure beneficial for progression of brain white matter hyperintensive and cognitive impairment in elderly hypertensive patients : 4-year follow-up study?
Answer: In elderly hypertensive patients, there exists a beneficial target for SBP lowering beyond which treatment may not be beneficial for improving or delaying the progression of cognitive impairment and WMLs.
Output (English): no