Both treat electrical problems, but their roles differ significantly — one regulates rhythm, the other stops dangerous ones.

Defibrillators and pacemakers help the heart maintain a regular rhythm. Defibrillators deliver a shock if the heart goes into arrhythmia. Pacemakers use electrical impulses to keep the heart from ...

You must have heard of pacemakers? They are required when the heart's natural system malfunctions, causing it to beat too slowly (bradycardia), irregularly, or even pause. All these can hinder ...