You probably were told your resting heart rate at your last checkup. Or maybe you get alerts throughout the day thanks to a fitness tracker or smart watch. But what does the number really mean? And ...

This article reviews the meaning behind a low (narrow), normal, and high (wide) pulse pressure and how to calculate it. It also explores the role of high pulse pressure as a predictor of ...

Your pulse rate tells a lot about your physical and mental health. While a normal resting heart rate for adults ranges from ...

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Sinus rhythm (a.k.a. normal sinus rhythm) refers to the normal heart beat originating from the sinoatrial node. This is manifested as an upright P wave in lead II of the ECG. Sinus bradycardia ...