Normal Blood Pressure Values in Humans
Sep 13, 2022
Source: Cainiu Health
Dr. Li Man
Introduction
Blood pressure consists of systolic and diastolic pressure, commonly known as high pressure and low pressure, representing the pressure during heart contraction and relaxation, respectively. The normal range for systolic pressure is 90–140 mmHg; if it exceeds 140 mmHg, it is considered hypertension. The normal range for diastolic pressure is 60–90 mmHg; if it exceeds 90 mmHg, it is also considered hypertension.
The age at which abnormal blood pressure occurs is becoming increasingly younger. If abnormal blood pressure is left uncontrolled, cardiovascular and cerebrovascular diseases will inevitably become the leading cause of premature death within 10 years. So, what is the normal blood pressure value for the human body?
Normal Blood Pressure Values in Humans
Blood pressure consists of systolic pressure and diastolic pressure—commonly known as high pressure and low pressure—representing the pressure during heart contraction and relaxation, respectively. The normal range for systolic pressure should be between 90–140 mmHg; if it exceeds 140 mmHg, it is considered hypertension. The normal range for diastolic pressure is 60–90 mmHg; if it exceeds 90 mmHg, it is also classified as hypertension.
Blood pressure levels are directly related to multiple factors such as the heart's pumping capacity, vascular tone, and blood volume. When myocardial contractility significantly increases, blood pressure rises markedly. For example, conditions like anemia, infection, or hyperthyroidism can lead to compensatory enhancement of myocardial contraction, resulting in elevated blood pressure.
Changes in peripheral vascular resistance can also affect blood pressure. Conditions such as atherosclerosis or reduced arterial elasticity may lead to increased blood pressure. Therefore, controlling blood pressure often requires measures that dilate blood vessels and reduce peripheral resistance. Blood pressure is also directly related to blood volume—patients with severe anemia or blood loss may exhibit symptoms of hypotension or shock. We hope this information is helpful to you. Wishing you good health and a happy life!
