In general, a blood pressure control of less than 140/90 mmHg is ideal. For older adults with low diastolic blood pressure and particularly large pulse pressure differences, a blood pressure of less than 150/90 mmHg is sufficient. If tolerated, it is advisable to lower it even more. However, if you have severe coronary artery disease, it is best to avoid diastolic blood pressure below 70 mmHg. When hypertension is combined with heart failure, chronic renal insufficiency, or diabetes, blood pressure control below 130/80 mmHg is most appropriate. According to the latest research in 2015, if the systolic blood pressure is further reduced to below 120 mmHg, the complications of cardiovascular disease can be further reduced.