Angina is chest pain or discomfort caused when the heart muscle doesn't get enough oxygen-rich blood. It may feel like pressure or squeezing in the chest. The discomfort also can occur in the shoulders, arms, neck, jaw, or back. Angina pain may even feel like indigestion. Keep in mind that angina is not a disease, it is an underlying heart problem, specifically coronary heart disease. Some of the types of angina are microvascular angina, Prinzmetal's angina, stable angina, unstable angina and variant angina. This usually happens because one or more of the coronary arteries is narrowed or blocked, also called ischemia. Prior to discussing in brief about angina, let us discuss a bit about the life-saving CPR techniques that comprises chest compressions and rescue breaths. Proper application of the techniques can lead to the survival of a victim involved in a cardiac emergency which can either be a cardiac arrest or heart attack. Always select a certified training center ...