Blood pressure at 130/90mmHg is not dangerous. A person’s normal systolic blood pressure is between 90-140mmHg, while diastolic blood pressure is between 60-90mmHg. 130/90mmHg when systolic blood pressure is within the normal range and diastolic blood pressure is at the upper limit of normal values, which is generally not a major risk to the person. However, it is also important to note that because the diastolic blood pressure has already reached 90 mmHg, any further increase is diagnostic of grade 1 hypertension. In addition, this blood pressure value already increases the chance of cardiovascular and cerebrovascular events, so it is important to monitor the blood pressure closely, and it is best to bring it down to about 120/80 mmHg with lifestyle interventions, such as eating less salt, less food high in oil, fat and cholesterol, and moderate physical activity, all of which can be effective in lowering blood pressure.