. I had high blood pressure when I was just 29 years old. My highest systolic blood pressure could reach 200 mmHg, and the lowest was 180 mmHg (Note: the normal blood pressure is 120/80 mmHg). My doctor told me, "You should be careful. If you don't control your blood pressure, you may have a stroke." After hearing the doctor's words, I was terrified. However, even after taking antihypertensive drugs, my blood pressure was still very high.