High Blood Pressure

Taking aim at added sugars to improve Americans' health

Now that health advocates' campaigns against trans-fats have largely succeeded in sidelining the use of the additive, they're taking aim at sugar for its potential contributions to Americans' health conditions. But scientists ...

6 hours ago
popularity not rated yet | 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

Latest Spotlight News

Fear, safety and the role of sleep in human PTSD

The effectiveness of post-traumatic stress disorder (PTSD) treatment may hinge significantly upon sleep quality, report researchers at the University of California, San Diego School of Medicine and Veterans ...

New drug promises relief for inflammatory pain

Pain from inflammation sidelines thousands of Americans each year. Many face a tough choice: deal with the pain, take a potentially addictive opioid or use a nonsteroidal anti-inflammatory drug that may increase risk for ...

Junk food makes rats lose appetite for balanced diet

A diet of junk food not only makes rats fat, but also reduces their appetite for novel foods, a preference that normally drives them to seek a balanced diet, reports a study published in the open-access journal ...

Scientist finds clearer obesity, diabetes connection

(Medical Xpress)—New findings about the biological links between obesity and insulin resistance and Type 2 diabetes may also shed light on the connection between obesity and cancer, says a scientist at ...