Keep in mind that high blood pressure is not a disease, but rather a symptom of other disorders in the body. Hypertension can be due to nervous tension, kidney disease, glandular disorders, obesity, hardening of arteries, etc. In general, it could be said that a great number of diseased conditions in the body will raise the blood pressure. However, by far the most common cause of high blood pressure is the hardening of the arteries. When arteries and arterioles become constricted by cholesterol or other deposits, they lose their elasticity and become brittle and hard, so the blood has difficulty passing through them and the heart has to work harder and increase its pressure in order to maintain circulation. In case of infections or other diseased conditions in various parts of the body, blood pressure is increased as a defensive measure in order to increase the flow of blood to the diseased area, to supply it with the nutrients, hormones and other vital substances needed for the healing processes, to accelerate the detoxification of the blood, and to speed recovery.

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