How CPR Has Changed Throughout the Years

A group of people learning CPR from an instructor.

There’s a reason you need to get your CPR certification renewed every two years—CPR guidelines and best practices change all the time. As we learn more about the human body and as science advances, the American Heart Associate (AHA) rereviews CPR practices every five years to determine if they’re still the best way to administer life-saving care. Knowing the history