According to recent estimates, about one in three U.S. adults has high blood pressure, but because there are no symptoms, nearly one-third of these people don't know they have it. In fact, many people have high blood pressure for years without knowing it. Uncontrolled high blood pressure can lead to stroke, heart attack, heart failure or kidney failure. This is why high blood pressure is often called the "silent killer." The only way to tell if you have high blood pressure is to have your blood pressure checked.

Get the facts on high blood pressure and how to live a heart-healthier life. Find out how you can reduce your risks for heart attack and stroke with proper monitoring by a healthcare provider and simple lifestyle changes, even if you have high blood pressure.

Blood Pressure Risk Calculator
What is your risk? Learn about your blood pressure and its dangers with this interactive learning tool.

Blood Pressure Quiz
Test your knowledge of high blood pressure by taking this simple quiz.

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Ask the Expert
It’s important to understand your blood pressure. Our experts answer your questions. Read commonly asked questions and get answers.

This content is reviewed regularly. Last updated 03/20/08.