What is Normal Sinus Rhythm (NSR)?

What is NSR?

NSR- Normal Sinus Rhythm, Any change in the NSR results in a condition called Arrhythmia. It can also cause Bradycardia. A condition of slow heart where the heart rate reduces to 30-50 beats per minute (BPM) resulting in insufficient blood supply to the human body. It causes dizziness and loss of consciousness.