As humans, we are always in danger of getting into emergency situations where our life would be at risk, such as in the case of a sudden cardiac arrest. Such kind of emergencies usually does not come with warnings. Cardiopulmonary resuscitation (CPR) is a technique that can be used to save lives in emergency scenarios. These types of emergencies can arise as a result of accidents and natural disasters too. Those who are suffering from diseases like cancer, cardiovascular disease, renal disease, and so on may have the need for urgent application of CPR at some point in their lives. Cardiopulmonary resuscitation when applied as a first aid in cases of emergency cardiac arrest can increase the chances of a person’s survival. Those who do not get CPR on time at the time of a heart attack often die of premature death. It is not always possible to predict who will get a heart attack and when, but it is possible to be prepared to deal with the situation by learning about how to apply CPR t...