Unconfirmed media reports say Nancy Guthrie's pacemaker stopped syncing with her Apple devices. Here's what that means.

Data from Nancy Guthrie's pacemaker has helped shed light on the events leading up to her kidnapping, but there are significant limits in how much data the devices can collect. Most importantly for ...

As we witness the rapid advancement of technology, lifesaving devices such as connected pacemakers and other medical implants are also evolving. However, with this evolution comes the susceptibility ...

The heart devices do not track location, nor do they transmit across large distances. By Gina Kolata Like an estimated three million Americans, Nancy Guthrie, the 84-year-old mother of the NBC News ...