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.
Drink plenty of water. Low blood pressure can accompany dehydration, so you may be able to raise your blood pressure by increasing your water intake. Aim to drink at least eight to ten 8 oz cups of water per day. You should drink more water if this doesnât help your symptoms or if you spend time outdoors or exercising.
With pulmonary hypertension, the rise in blood pressure is caused by changes in the cells that line your pulmonary arteries. These changes can cause the walls of the arteries to become stiff and thick, and extra tissue may form. The blood vessels may also become inflamed and tight.