Your loved one has suddenly fallen victim of cardiac arrest in front of you. In such a shocking situation, it is natural that you are puzzled and your thought is frozen. Within a few minutes when you come to your senses, you rush to the telephone and dial 911 to call for emergency medical service at your home. You also call a doctor in your locality if phone number is available. Now after 20-30 minutes when any of the medical help arrives, it cannot be assured that your loved one is still alive! This may be true because if his or her heart fails and is not breathing then the brain cells will not get oxygen and no blood circulation will reach there. As a result, brain damage will start within 4-5 minutes of the pause in natural breathing. Things could be totally different if you had the knowledge and practical skills of performing cardiopulmonary resuscitation. You could have started CPR method within a minute or two after you call at the emergency number. By doing several chest comp...