Heart arrhythmias occur when the electrical impulses that coordinate your heartbeat become disrupted. There are different types, with some causes including:
- Heart disease, high blood pressure, or prior heart attack that has damaged the heart’s electrical system
- Congenital heart abnormalities present from birth
- Imbalances in electrolytes like sodium, potassium, or magnesium
- Effects of caffeine, alcohol, medications, or stimulants
- Physical causes like sleep apnea or thyroid disorders
- Stress or strenuous exercise
Sometimes, there is no identifiable cause for an arrhythmia. Whether an arrhythmia is dangerous depends on the type, frequency, and one’s overall heart health. Some may cause bothersome symptoms but are otherwise benign. However, certain arrhythmias can significantly raise the risk of stroke, heart failure, or sudden cardiac arrest. The good news is very effective treatments are available for most arrhythmias.