High Blood Pressure

Could too much sitting be bad for our brains?

In many aspects of life where we need to use our brain power, we also tend to sit down: at school, at work, sitting exams or concentrating on a crossword. In a new paper, we explore how prolonged sitting may affect the brain's ...

Jul 27, 2017
popularity7 comments 0

How the immune system causes heart disease

Heart disease is among the leading causes of death globally and imposes a significant burden on the health-care system. We know some of the causes of heart disease: smoking, unhealthy diet, obesity, high blood pressure, diabetes ...

Jul 21, 2017
popularity12 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

Screen time linked to diabetes

Daily screen time of three or more hours is linked to several risk factors associated with the development of diabetes in children, according to a study by St George's, University of London.

A new insight into Parkinson's disease protein

Abnormal clumps of certain proteins in the brain are a prominent feature of Parkinson's and other neurodegenerative diseases, but the role those same proteins might play in the normal brain has been unknown.