Most arrhythmias result from problems in the electrical system of the heart. If your arrhythmia is serious, you may need a cardiac pacemaker or an implantable cardioverter defibrillator (ICD). They are devices that are implanted in your chest or abdomen. A pacemaker helps control abnormal heart rhythms. It uses electrical pulses to prompt the heart to beat at a normal rate.
Steven Berlin Johnson (born June 6, 1968) is an American popular science author and media theorist.
Steven Paul Smith was born at the Clarkson Hospital in Omaha, Nebraska, the only child to Gary Smith, a student at the University of Nebraska Medical Center, and Bunny Kay Berryman, an elementary school music teacher.