The human heart is an organ that pumps blood throughout the body through the circulatory system, supplying oxygen and nutrients to the tissues and removing carbon dioxide and other wastes. The heart failure (what physicians call the myocardial infarction or MI) is defined as harm to part of the heart muscle caused by insufficient blood flow to the environment. Most of the time, this occurs because of the obstruction in one of the heart’s arteries called the type 1 heart failure, such blockages typically appear when cholesterol-laden plaque lining the artery ruptures. The lump forms, obstructing the vessel. Sometimes there is confusion between the terms "cardiac arrest" and "heart attack." A heart attack, or myocardial infarction, is damage to the heart muscle that occurs due to reduced blood flow to the heart muscle, depriving the heart muscle of the oxygen it needs to function properly. Cardiac arrest means that the heart stops beating and death is imminent. A heart attack, if severe, can lead to cardiac arrest, and this is what occurs when a heart attack is fatal. However, other conditions, such as serious arrhythmias or shock, can also cause cardiac arrest. Knowing the early warning signs of heart attack is critical for prompt recognition and treatment. Many heart attacks start slowly, unlike the dramatic portrayal often seen in the movies. A person experiencing a heart attack may not even be sure of what is happening. Heart attack symptoms vary among individuals, and even a person who has had a previous heart attack may have different symptoms in a subsequent heart attack. Although chest pain or pressure is the most common symptom of a heart attack, heart attack victims may experience a diversity of symptoms.        

The heart failure is the common reason of cardiac arrest, but most heart attacks do not result to cardiac arrest. Other potential cases of cardiac arrest include heart failure, the lump in the lungs, the severe imbalance of potassium, metal, or other minerals in that blood, the drug overdose, or a blow to the chest. Some eye attacks have more damage than others. During the heart failure, blood levels of the protein released by broken muscle (troponin) give some meaning of difficulty. Later, the ultrasound (echocardiogram) will reveal the magnitude of the harm. Cardiac arrest differs from the heart failure, which happens when the blockage keeps blood flowing to the eye, although heart failure and other heart conditions may cause cardiac arrest. Since cardiac arrest frequently is the initial sign of underlying cardiovascular disease, testing and treatment for general heart diseases are important.  However, sometimes physicians call cardiac arrest "sudden cardiac death" even if the person survives. Thus one can hear mentions of "prior episodes of sudden cardiac death" in a living person. In 2006 the American Heart Association presented the following definitions of sudden cardiac arrest and sudden cardiac death: "Cardiac arrest is the sudden cessation of cardiac activity so that the victim becomes unresponsive, with no normal breathing and no signs of circulation.

Some heart attacks hit short, but Some people take warning signs and symptoms times, days or weeks ahead of time. The earliest warning might be repeated chest pain or force (angina) that's sparked by sweat and eased by sleep. Angina is caused by the temporary change in blood flowing to the eye. During the heart failure, one of these plaques will tear and spill cholesterol and other substances into the blood. The blood clot forms in the site of the trauma. If large enough, this lump will stop the flow of people through the coronary artery, craving the heart strength of oxygen and nutrients.     

The greatest way to manage the cardiac arrest is to keep it in check, if possible. Most cardiac arrests are linked with the onset of the heart failure so that the identification of symptoms of the heart failure are important. Chest force or feeling, the sharp onset of shortness of breath, serious indigestion-like symptoms particularly when related with perspiration, light headedness, or palpitations should cause the 911 visit so that a defibrillator will be available should a cardiac arrest occur. “ unexpected cardiac arrest will be overturned if it is treated within the first hours of it happening, Which is why it is so important for the general public to see the proper ways to help in the cardiac crisis condition if and when they should always find one.   

In summary, Cardiac emergencies represent a great health threat to our societies. Heart failure and cardiac arrest represent these two general cardiac emergencies. Learning to realize the signs and symptoms of the heart failure and responding directly will decrease the danger of complications and help prevent cardiac arrest. If one person has cardiac arrest, the greatest chance of life happens when the cardiac chain of life occurs as quickly as possible. By learning to recognize the signs and symptoms of cardiac emergencies and how to attend to someone in that condition and giving CPR (cardiopulmonary resuscitation) before the arrival of a professional, you will create a change.