It encompasses a set of essential skills that can be employed by bystanders, healthcare professionals, and first responders alike to sustain life until more advanced medical care can be administered.

At its core, BLS focuses on the recognition of emergencies, the initiation of prompt action, and the application of critical techniques such as chest compressions and rescue breaths. Whether responding to cardiac arrest, choking, or other life-threatening scenarios, individuals trained in BLS are equipped with the knowledge and skills to make a significant difference in those critical moments before professional help arrives.