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 ...

Some can even monitor ovulation for women. One of the best health features of today's smartwatches is their ECG capability.

And because it’s also quite simple to implement the required sensors, it makes sense that electrocardiogram (ECG) machines are a popular choice among introductory medical electronics projects.

These electrodes are connected to wires that lead to the EKG machine. Recording: You'll lie still while the machine records ...