Is a slow heart rate a sign of a serious heart problem?

A slow heart rate, known as bradycardia, may cause fatigue, dizziness, breathlessness and even fainting if left untreated. Dr. Sumanta Chatterjee, Consultant Cardiologist at Manipal Hospitals, Kolkata, says early diagnosis is crucial. Depending on the cause, treatment may include medication changes or advanced leadless pacemakers for better heart rhythm management.