Jake was admitted to the hospital to receive a pacemaker. His heart rate had become so slow that it was giving him discomfort. An electrocardiogram was indicative of a problem with the heart’s...

Jake was admitted to the hospital to receive a pacemaker. His heart rate had become so slow that it was giving him discomfort. An electrocardiogram was indicative of a problem with the heart’s electrical system. What is the cause of Jake’s condition, and why could an artificial pacemaker help? What is the difference between the natural pacemaker and an artificial one?