The pacemaker is a very small device, which is placed in the chest or the abdomen and it further helps to control abnormal heart rhythms. This is a device, which has low-energy pulses to treat the heart, which beats at the normal rate. The pacemaker is used to treat arrhythmia. Many doctors recommend pacemakers for many reasons and among them heart blockage is the common one. In addition, this problem occurs when the heart's electrical system relates to disorder which when occurs with the electrical signal is slowed or disrupted as it further moves through the heart. One should understand that placing a pacemaker requires minor surgery and the surgery usually is done in a hospital for special heart treatment laboratory. One should understand that the medicine given for the surgery will help you to relax and make you feel sleepy. The surgery which takes just a few hours may help you stay in the hospital overnight for your health care team and it can make you check your heartbeat. Complications arising from pacemaker surgery are rare and with this people can return to their normal activities within a few days. One should know that pacemaker batteries can live from 5-15 years and it depends on how active your pacemaker is. The wires of a pacemaker can be replaced eventually.