If your doctor orders an electrocardiogram (EKG or ECG) to check your heart rhythm and blood flow or to diagnose a heart attack, a technician will stick 10 or 12 adhesive electrodes to your chest, arms and legs. A computer then creates a graph showing the electrical impulses moving through your heart while you’re lying still or exercising.
That’s how an ECG is done today. Advanced wearable technologies from Israel aim to change the procedure radically.