Cardiology

Calcium specks may help detect heart disease in South Asians

Specks of calcium in the heart's artery walls could be an important prognostic marker of early cardiovascular disease in South Asians and may help guide treatment in this population, according to a study by researchers at ...

Cardiology

Breastfeeding may help a mom's heart

Studies have long touted the benefits of breastfeeding for infants, including stronger immune systems and lower risk for asthma, obesity and Type 2 diabetes. But babies aren't the only ones benefiting: Nursing also appears ...

Cardiology

Treatments for preeclampsia

Researchers at ETH Zurich have used trials with mice to shed light on signalling pathways that lead to thickened and less elastic blood vessels. They have developed a treatment approach for pregnant women with previously ...

Cardiology

Physical activity reduces mortality in patients with diabetes

Patients with type 2 diabetes should be prescribed physical activity to control blood sugar and improve heart health. That is one of the recommendations in a position paper of the European Association of Preventive Cardiology ...

Health

How do I tell if I'm dehydrated?

It's a message that's been drummed into us since childhood. Drink water, especially when it's hot, otherwise you'll get dehydrated.

Health

Sex differences in 'body clock' may benefit women's heart health

Research suggests that a gene that governs the body's biological (circadian) clock acts differently in males versus females and may protect females from heart disease. The study is the first to analyze circadian blood pressure ...

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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.

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