What is BLS?
Basic Life Support (BLS) is the American Heart Association’s foundation-level resuscitation training: recognizing life-threatening emergencies, performing high-quality CPR, and using an AED early. The AHA’s 2025 BLS Provider Course teaches rescue techniques for adults, children (1 year to puberty), and infants (younger than 1 year) — the age ranges the AHA itself defines for the course.
