A: Your blood pressure is very high. B: What does high blood pressure mean? A: High blood pressure or hypertension means that there is a lot of pressure on your arteries. B: That doesn't sound very good. A: It isn't very good because it means you are at higher risk to develop heart disease. B: I feel fine, though. A: High blood pressure is called a silent killer. B: What causes high blood pressure? A: It could be the sign of some other diseases. B: I am already taking medication. A: You should tell me the medications you are taking because some meds cause high blood pressure. B: I'd better change my lifestyle.