High Blood Pressure

A practical intervention to reduce salt intake in Perú

High salt intake is associated with high blood pressure, which left untreated increases the risk of stroke and heart attacks. Despite these harmful effects on health, many populations consume twice the WHO-recommended salt ...

17 hours ago
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Menopause diminishes impact of good cholesterol

What has previously been known as good cholesterol—high density lipoprotein (HDL)—has now been shown to be not so good in protecting women against atherosclerosis while they are transitioning through menopause. That's ...

Oct 08, 2015
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Kidney failing? Grow a new one

Kidneys are not romanticised like the heart, or held on high like the brain. But these fist-sized organs are integral to our ability to filter waste and excess fluid from our bodies.

20 hours ago
popularity35 comments 0

Hypertension (HTN) or high blood pressure, sometimes arterial hypertension, is a chronic medical condition in which the blood pressure in the arteries is elevated. This requires the heart to work harder than normal to circulate blood through the blood vessels. Blood pressure involves two measurements, systolic and diastolic, which depend on whether the heart muscle is contracting (systole) or relaxed (diastole) between beats. Normal blood pressure is at or below 120/80 mmHg. High blood pressure is said to be present if it is persistently at or above 140/90 mmHg.

Hypertension is classified as either primary (essential) hypertension or secondary hypertension; about 90–95% of cases are categorized as "primary hypertension" which means high blood pressure with no obvious underlying medical cause. The remaining 5–10% of cases (secondary hypertension) are caused by other conditions that affect the kidneys, arteries, heart or endocrine system.

Hypertension is a major risk factor for stroke, myocardial infarction (heart attacks), heart failure, aneurysms of the arteries (e.g. aortic aneurysm), peripheral arterial disease and is a cause of chronic kidney disease. Even moderate elevation of arterial blood pressure is associated with a shortened life expectancy. Dietary and lifestyle changes can improve blood pressure control and decrease the risk of associated health complications, although drug treatment is often necessary in patients for whom lifestyle changes prove ineffective or insufficient.

This text uses material from Wikipedia licensed under CC BY-SA

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