High Resting Heart Rate: Causes, Risks, and ECG Indicators
A consistently high resting heart rate can indicate stress, dehydration, anemia, thyroid disorders, or underlying heart disease. This topic will explore common causes and how they affect the heart’s electrical system. It will explain how ECG helps detect sinus tachycardia and differentiate it from more serious arrhythmias. The article will also highlight long-term risks associated with elevated RHR. Readers will learn when lifestyle changes are enough and when ECG-based medical evaluation is necessary.