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| | High Blood Pressure (Site not responding. Last check: 2007-10-08) |
 | | Whether blood pressure is high, low, or normal depends on several factors: the output from the heart, the resistance to blood flow of the blood vessels, the volume of blood, and blood distribution to the various organs. |
 | | Because high blood pressure usually causes no symptoms until complications develop, it is known as the “silent killer.” Warning signs associated with advanced hypertension may include headaches, sweating, rapid pulse, shortness of breath, dizziness, and visual disturbances. |
 | | When persistently elevated blood pressure arises as a i suit of another underlying health problem, such as a monal abnormality or an inherited narrowing of the aorta it is called secondary hypertension. |
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