Electrocardiography (ECG) is a transthoracic (across the thorax or chest) interpretation of the electrical activity of the heart over a period of time, as detected by electrodes attached to the ...

The ECG app on Apple Watch (Series 4 or newer) can record your heartbeat and rhythm using the electrical heart sensor and then check the reading for atrial fibrillation (AFib). It then records ...

Of all the electrical signals generated by the human body, those coming from the heart are probably the most ... it makes sense that electrocardiogram (ECG) machines are a popular choice among ...