What is the normal value of human blood pressure?

Blood pressure is divided into two parts. The first part is systolic blood pressure, which is often called high pressure, and the normal range is between 90 and 140mmHg. The second part is diastolic blood pressure, which is low pressure. The normal range is between 60 and 90mmHg. If any part of your continuous measurement exceeds the normal range, you can diagnose hypertension.