hypertension
"Hypertension (HTN), high blood pressure" or "arterial hypertension" (arterial hypertension), is a chronic arterial hypertension symptoms. Elevated blood pressure increases the burden of the heart to promote blood circulation in the blood vessels. There are two kinds of blood pressure, systolic and diastolic blood pressure, respectively, when the heart beat muscle contraction (systole) or diastole (diastole) when the measured value. Normal resting blood pressure range is systolic blood pressure 100-140 mm Hg mmHg (maximum reading) and diastolic blood pressure 60-90 mm Hg mmHg (minimum reading). Blood pressure is equal to or higher than 140/90 mm Hg mmHg when the high blood pressure. Hypertension is divided into primary hypertension or secondary hypertension. About 90-95% of cases are "essential hypertension", that is, there is no obvious cause of hypertension. The remaining 5-10% of cases are caused by other conditions that affect the kidney, blood vessels, heart, or endocrine system (secondary hypertension). ...