What Causes High Blood Pressure? -- An Introduction
In most people, what causes
high blood pressure is not known. In these cases, this type of high
blood pressure is called primary, or essential,
hypertension. In other people, high blood pressure is the result of another medical problem or medicine. When it is known what causes high blood pressure, this is called secondary high blood pressure.
What Causes High Blood Pressure? -- Primary (or Essential) Hypertension
In 9 out of 10 people, there is no identifiable cause of high blood pressure.
This is called "primary hypertension" or "essential hypertension." Most people with primary hypertension don't even realize that they have it; the majority of people with high blood pressure feel no different from those who have
normal blood pressure. That's why high blood pressure is often called "the silent killer."