A method of treating patients in need of heart beat regulation or for preventing the development of cardiac arrhythmias, wherein the patients are not suffering from cardiac illness, by regulating heart beat using a cardiac pacemaker and reducing patient risk of developing a ventricular arrhythmia, wherein the risk is associated with an underlying patient illness, and wherein the patient does not suffer from cardiac illness, by regulating the patient's heart beat using a cardiac pacemaker.
