Generally speaking, a blood pressure of 90mmHg/70mmHg with a systolic blood pressure at a low normal value is normal. In general, the normal blood pressure range of the human body is between 90 to 140mmHg (systolic) and 60 to 90mmHg (diastolic), if the systolic blood pressure <90mmHg or diastolic blood pressure <60mmHg, it is known as low blood pressure or low blood pressure state. Therefore, a blood pressure of 90mmHg/70mmHg is in the normal range. Human blood pressure is affected by many factors (e.g., heredity, diet, emotions, weight, medications, etc.). It should be noted that if there are uncomfortable symptoms and the blood pressure 90mmHg/70mmHg has changed considerably from the previous level, you should go to the local hospital to clarify the cause and treat the symptoms.