What is the difference between high diastolic pressure and high systolic pressure?

Apr 17, 2023 Source: Cainiu Health

Dr. Tian Hongbo

Introduction

Low pressure refers to diastolic pressure, and high pressure refers to systolic pressure. The normal range for diastolic pressure is 60–90 mmHg, while the normal range for systolic pressure is 90–140 mmHg. When both pressures are elevated simultaneously, it indicates hypertension. Diastolic pressure helps maintain unidirectional blood flow; once elevated, it may cause backflow. Systolic pressure forces blood from the ventricles into the arteries, and when elevated, can lead to damage of blood vessels and the heart.

Generally, "low pressure" refers to diastolic blood pressure, while "high pressure" refers to systolic blood pressure. The differences between elevated diastolic and elevated systolic blood pressure lie in their definitions, blood pressure levels, and physiological roles. A detailed analysis is as follows:

1. Different Definitions

Diastolic blood pressure refers to the pressure exerted by blood on the arterial walls when the ventricles are in a state of relaxation. Systolic blood pressure refers to the pressure generated on the vessel walls when the ventricles contract and pump blood into the aorta.

2. Different Blood Pressure Levels

Under normal circumstances, the normal range for diastolic blood pressure is 60–90 mmHg, while the normal range for systolic blood pressure is 90–140 mmHg. If both values are consistently elevated across multiple measurements, this indicates hypertension.

3. Different Functions

Diastolic blood pressure helps maintain unidirectional blood flow; when it becomes elevated, it may lead to backflow. Systolic blood pressure drives blood from the ventricles into the arteries, propelling circulation to deliver blood to all tissues and cells throughout the body. Persistently elevated systolic pressure can cause damage to blood vessels or the heart.

Both diastolic and systolic blood pressures should be maintained within normal ranges. If elevated readings occur, the underlying causes should be promptly identified and treated with medication as directed by a physician.

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Is high diastolic blood pressure related to drinking alcohol?

High diastolic blood pressure usually refers to elevated diastolic pressure. In general, high diastolic pressure may be related to alcohol consumption, but it could also result from other factors. Therefore, elevated diastolic pressure is not solely associated with drinking; it is influenced by many factors. When the above issues are detected, it is recommended to promptly visit a正规 hospital for evaluation and receive appropriate adjustments and treatment based on the specific condition.

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Can high diastolic blood pressure lower on its own?

In adults at rest, the diastolic blood pressure ranges from 60 to 89 mmHg. If diastolic pressure is elevated, maintaining the original lifestyle habits makes it unlikely for blood pressure to decrease on its own, and may instead lead to further increases in blood pressure. Therefore, individuals with high diastolic pressure should adopt a low-salt, low-fat diet and increase physical activity to enhance their body's resistance. If diastolic pressure is significantly elevated, medication may also be required to effectively lower blood pressure.

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Does high diastolic blood pressure require lipid-lowering treatment?

In general, low blood pressure refers to diastolic pressure. If the diastolic pressure is high due to high blood lipids, lipid-lowering treatment is needed. However, if it is caused by other factors, lipid-lowering treatment is not necessary. In summary, when diastolic pressure is elevated, lipid-lowering therapy is required only if it is caused by high blood lipids; otherwise, it is not needed. Therefore, when elevated diastolic pressure occurs, the underlying cause should be evaluated.

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Can traditional Chinese medicine effectively regulate and treat low blood pressure with high readings?

Traditional Chinese medicine may not always effectively regulate low blood pressure with high diastolic pressure. High diastolic pressure typically refers to elevated diastolic blood pressure. When diastolic pressure is high, patients may experience discomfort such as headache, dizziness, nausea, vomiting, and poor mental status. Under a doctor's guidance, traditional Chinese medicine can be used for regulation. Commonly used herbs include Codonopsis (Dangshen), Astragalus (Huangqi), white peony root (Baishao), and Poria (Fuling), which may help improve symptoms.