Basic Life Support (BLS) is a set of emergency procedures designed to help someone who is experiencing a life-threatening medical emergency, such as a cardiac arrest or choking. BLS focuses on maintaining blood circulation and breathing until professional help arrives. Key techniques include chest compressions, rescue breaths, and using an automated external defibrillator (AED) if available. Learning BLS is essential for everyone, as it can save lives in critical situations. Training courses are often available through organizations like the American Heart Association or the Red Cross. Knowing how to perform BLS can make a significant difference in emergencies, providing immediate care to those in need.