What Are Systolic and Diastolic Pressure

What Are Systolic and Diastolic Pressure

What Are Systolic and Diastolic Pressure?

• Systolic pressure. The pressure on arterial vessels when the heart contracts

• Diastolic pressure. The pressure on arterial vessels when the heart relaxes When someone's blood pressure is 120/80 mmHg, it means systolic pressure is 120 mmHg and diastolic pressure is 80 mmHg, and it is called normal blood pressure. Hypertension is when blood pressure is 140/90 mmHg or higher. Hypertension is symptomless; people may have hypertension but not be aware of it. However, when blood pressure reaches 180/110 mmHg, symptoms like pain and discomfort appear.

Blood pressure is generated when the heart pumps the blood out to the rest of the body. Hypertension, or high blood pressure, is caused by the hardening of the arteries and makes it more difficult for the heart to pump the blood out to the rest of the body. Hypertension often is symptomless. Chronic hypertension is a risk factor for heart attack, stroke, kidney disease, and even blindness. In the US, 78 million people suffer from hypertension—almost one in three adults is afflicted with hypertension. 

Hypertension can be divided into two types:

• Essential hypertension. Genetics and lifestyle are linked to essential hypertension. Lifestyle factors include high consumption of sweet and salty foods, smoking, and drinking alcoholic beverages. Almost 90–95% of hypertension is essential hypertension.

• Secondary hypertension. Secondary hypertension is caused by kidney disease and certain medications. About 5–10% of hypertension is secondary hypertension.

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