Many businesses may already have AEDs, but as study co-author Timothy Chan, a professor of mechanical and industrial engineering at the University of Toronto, puts it, "if that location was closed, it is as if the AED wasn't even there." Cardiac arrest -- in which the heart suddenly stops beating -- is a leading cause of death among people over the age of 40 in the United States, according to the Sudden Cardiac Arrest Foundation.
When the electrical system in the heart stops working, an AED can deliver a lifesaving shock, allowing the heart to restart itself.
But that does not need to be the case.
Richard Page, chairman of the Department of Medicine at the University of Wisconsin School of Medicine, who provided editorial remarks for the study.
And a program that takes the information from this research, Page said, "would save lives."