's general knowledge of reason of the elderly's hypertension

's general knowledge of reason of the elderly's hypertension

According to World Health Organization's standard, the elderly's hypertension means the crowd over age 60 is under resting the state, systolic pressure is greater than or equal to 140mmHg and ' Or) The diastolic pressure is greater than or equal to the hypertension patient of 90 mmHg. The elderly's hypertension often causes apoplexy, coronary heart disease, myocardial infarction and in heart failure, very harmful. Which are the reason to cause the elderly's hypertension?
The reason of the elderly's hypertension mainly has the following several points:
Function of the elderly's sense of taste fails, so the elderly like the high food of edible sodium salt, the elderly's kidney arranges sodium ability to reduce at the same time. It can cause water and sodium retention that sodium salt is taken in, lead to the fact the blood capacity increases, blood vessel smooth muscle cell swelling, the blood vessel is narrow, the resistance of peripheral blood vessel increases, cause blood pressure to rise.
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