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Bradycardia or Low Heart Rate

Heart Rate Too Low

Bradycardia is when your heart rate is too slow.

Heartbeat: Anatomy of the Heart

Heart Rate Under 60 Beats Per Minute

Your heart normally beats from 60 to 100 times per minute in order to get enough oxygen-rich blood to the rest of your body. When your heart rate is under 60 beats per minute, you have bradycardia.

Signs and Symptoms Indicate Problem

Whether that is a problem depends on your age and physical condition. For example, people who are extremely physically fit may have slow heart rates. For them, a heart rate of fewer than 60 beats per minute may not pose any problem at all. But a serious disease or other condition can cause a bradycardia. Typically, bradycardia is a problem when you have signs and symptoms.


Complications can include:

  • Fainting
  • More dangerous arrhythmias
  • Heart failure

Contact Information

Cardiovascular Medicine
Division of the CardioVascular Institute
Beth Israel Deaconess Medical Center
330 Brookline Avenue
Boston, MA 02215