AED, or automated external defibrillator, or commonly known as the Automatic Defibrillator , is a lifesaving computerized medical apparatus which is designed to be used by untrained bystanders in case of emergency. This device is lightweight and portable, it runs by a battery installed in it. You probably have seen it at schools, offices, public buildings airports, Walmarts and basically in many public places. Awareness programs to use this device have been going on TV shows, theatres, and other public gatherings. However, fictions or movies where you see the doctor rubbing the defibrillator paddles together just before giving the shock – that scene is quite wrong! In reality, rubbing that way can cause the device to malfunction. Rubbing was useful once upon a time when they used conductive gels on the paddles, but using gel on defibrillator paddles got out-fashioned long ago. And no, defibrillator shock never causes a patient …