If a patient has a diastolic blood pressure of 93 mmHg and a systolic blood pressure of 137 mmHg according to the most widely used criteria for diagnosing hypertension, this is not normal because the normal systolic range should be 100-120 mmHg and the normal diastolic range should be 60-80 mmHg, which is currently considered mild hypertension, also called first-degree hypertension. However, it is often not possible to define whether a patient is suffering from hypertension by a single measurement, and it is recommended that the patient be further evaluated by three measurements on different days, or by further ambulatory blood pressure monitoring. If the patient is still unable to achieve blood pressure control after 1-3 months of lifestyle improvement, the patient is advised to initiate relevant antihypertensive medication, which may include relatively weak antihypertensive drugs such as bisoprolol and metoprolol.