10/09/2026
October is Sudden Cardiac Arrest Awareness Month, and understanding the difference between these two medical emergencies could help save a life.
Think of your heart as having two essential systems: plumbing and electrical.
🫀 HEART ATTACK — A Plumbing Problem
A heart attack occurs when blood flow to part of the heart muscle is blocked, often by plaque buildup in the coronary arteries. The heart usually continues beating, but the affected muscle is deprived of oxygen.
⚡ SUDDEN CARDIAC ARREST — An Electrical Problem
Sudden cardiac arrest occurs when the heart's electrical system malfunctions, causing the heart to suddenly stop pumping blood effectively.
A person may suddenly collapse, become unresponsive, and stop breathing normally. Cardiac arrest can affect people of all ages, including those who appear healthy.
Both are medical emergencies, but they are NOT the same thing.
🚨 Knowing how to respond can save a life. Call 911 immediately if you suspect either emergency. If someone collapses, is unresponsive, and is not breathing normally, begin CPR and use an AED as soon as one is available, following emergency dispatcher instructions.
Source: Sudden Cardiac Arrest Foundation (sca-aware.org)