hierarchy - a series of ordered groupings of people or things within a system; put honesty first in her hierarchy of values. 1  celestial hierarchy - the collective body of angels. 2  data hierarchy - an arrangement of data consisting of sets and subsets such that every subset of a set is of lower rank than the set. taxonomy - a classification of organisms into groups based on similarities of structure or origin etc.
No, elevated blood pressure is not a known side effect of the flu vaccine. Other things, such as pain, can cause your blood pressure to rise.
About 90% to 95% of all high blood pressure cases are what is called primary, or essential hypertension. That means the real cause of the high blood pressure is not known, but a number of factors contribute. You are at increased risk if you 1  -. Have a family history of high blood pressure. Pressure inside your arteries can cause the muscles that line the walls of the arteries to thicken, thus narrowing the passage. 2  A heart attack or stroke can occur if a blood clot blocks blood flow to your heart or brain. 3  Enlarged heart. 4  High blood pressure increases the amount of work for your heart.