Neuroscience

Study finds 10 metabolites associated with risk of stroke

Metabolites are small molecules found in our body's cells. They come from the food we eat, chemical processes happening within our bodies and microbes. A new analysis of recent studies has found that the levels of 10 metabolites ...

Diabetes

'Repeat after me' for better diabetes care

(HealthDay)—Repeat this: The key to helping people with diabetes stay healthier and out of the hospital could be as simple as better communication.

Health

Why physical activity matters now more than ever

Physical inactivity, which results in conditions such as obesity, type 2 diabetes, low mood, and high blood pressure, costs the NHS over £455 million every year—and the contribution to excess morbidity and mortality since ...

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Hypertension

Hypertension, also referred to as high blood pressure, HTN or HPN, is a medical condition in which the blood pressure is chronically elevated. In current usage, the word "hypertension" without a qualifier normally refers to systemic, arterial hypertension.

Hypertension can be classified as either essential (primary) or secondary. Essential hypertension indicates that no specific medical cause can be found to explain a patient's condition. About 90-95% of hypertension is essential hypertension. Secondary hypertension indicates that the high blood pressure is a result of (i.e., secondary to) another condition, such as kidney disease or tumours (adrenal adenoma or pheochromocytoma).

Persistent hypertension is one of the risk factors for strokes, heart attacks, heart failure and arterial aneurysm, and is a leading cause of chronic renal failure. Even moderate elevation of arterial blood pressure leads to shortened life expectancy. At severely high pressures, defined as mean arterial pressures 50% or more above average, a person can expect to live no more than a few years unless appropriately treated. Beginning at a systolic pressure (which is peak pressure in the arteries, which occurs near the end of the cardiac cycle when the ventricles are contracting) of 115 mmHg and diastolic pressure (which is minimum pressure in the arteries, which occurs near the beginning of the cardiac cycle when the ventricles are filled with blood) of 75 mmHg (commonly written as 115/75 mmHg), cardiovascular disease (CVD) risk doubles for each increment of 20/10 mmHg.

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