Your resting heart rate, the number of times your heart beats per minute while at rest, is a key indicator of your ...

Your resting heart rate, the number of times your heart beats per minute when you're at rest, is a simple yet powerful ...

In sinus tachycardia, the heart rate increases but continues to beat properly in the normal rhythm. Sinus tachycardia occurs when the heart rate increases due to expected reasons, such as during ...

A normal heart rate is between 60 to 100 beats per minute (BPM), but it can vary by person. A heart rate slower than 60 BPM can be a sign of anything from a high fitness level to hypothyroidism.

In general, the normal QT interval is below 400 to 440 milliseconds (ms), or 0.4 to 0.44 seconds. Women have a longer QT interval than men. Lower heart rates also result in a longer QT interval.

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 occurs when the heart rate is less than 60 ...