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Heart Disease Health Center

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Bradycardia (Slow Heart Rate) - Topic Overview

card_02.jpg

What is bradycardia?

Having bradycardia (say "bray-dee-KAR-dee-uh") means that your heart beats very slowly. For most people, a heart rate of 60 to 100 beats a minute while at rest is considered normal. If your heart beats less than 60 times a minute, it is slower than normal.

A slow heart rate can be normal and healthy. Or it could be a sign of a problem with the heart's electrical system camera.gif.

For some people, a slow heart rate does not cause any problems. It can be a sign of being very fit. Healthy young adults and athletes often have heart rates of less than 60 beats a minute.

In other people, bradycardia is a sign of a problem with the heart's electrical system. It means that the heart's natural pacemaker isn't working right or that the electrical pathways of the heart are disrupted. In severe forms of bradycardia, the heart beats so slowly that it doesn't pump enough blood to meet the body's needs. This can cause symptoms and can be life-threatening.

Men and women age 65 and older are most likely to develop a slow heart rate that needs treatment. As a person ages, the electrical system of the heart often doesn't function normally.

What causes bradycardia?

Bradycardia can be caused by:

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