Cardiac arrest is a medical emergency marked by a sudden cessation of heart function, preventing blood from circulating and leading to potential death within minutes. It differs from a heart attack, which results from a blockage affecting blood flow to the heart. According to the American Heart Association (AHA), approximately 436,000 Americans die from cardiac arrest each year. Recognizing the symptoms—such as sudden collapse, absence of pulse, and loss of consciousness—is essential for timely intervention. Dr. Sanjay Kumar, a cardiology expert, emphasizes that immediate action can significantly improve survival rates. In the event of cardiac arrest, bystanders should call emergency services and begin cardiopulmonary resuscitation (CPR) promptly. CPR should consist of strong, fast chest compressions at a rate of 100 to 120 per minute, with a depth of about five to six centimeters. If available, an automated external defibrillator can be used to deliver a life-saving shock. Continuous CPR should be maintained until professional help arrives or the individual shows signs of recovery. Awareness and preparedness can make a crucial difference in the outcome of a cardiac arrest situation.