Hypertension down to 100/70mmHg is within the normal range, which is normal for healthy people and not normal for people with severe hypertension. 100/70mmHg is within the range of normal blood pressure, which is normal for healthy people and does not need to be adjusted. However, for patients with high basal blood pressure, such as elderly patients, belonging to the low blood pressure level, the sudden reduction of blood pressure level too much may lead to insufficient cerebral blood supply and induce cerebral infarction. Whether the blood pressure level is normal or not should refer to the patient’s basal blood pressure level in addition to the normal range. If the patient’s basal blood pressure level is high, avoid rapid decline of the blood pressure level in a short period of time during antihypertensive treatment, and at the same time the blood pressure level should not be too low. If there are any uncomfortable symptoms such as dizziness during the process of lowering blood pressure, it is necessary to go to the hospital in time to prevent the occurrence of serious complications.