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 ...

A pacemaker, which unconfirmed media reports say Nancy Guthrie has, does not contain GPS and cannot be used to track a person's location. A pacemaker will continue to function even if it stops syncing ...

Nancy Guthrie’s 2 a.m. pacemaker spike on the day she vanished could mean that the elderly woman was involved in a heart rate-surging struggle with her possible captors, a lead cardiologist speculated ...

Savannah Guthrie’s mom Nancy Guthrie‘s pacemaker stopped syncing with her Apple Watch early Sunday when she disappeared. A law enforcement source told Fox News Digital that the 84-year-old’s pacemaker ...

Nancy Guthrie’s pacemaker stopped syncing with her Apple devices predawn Sunday, a Tuesday report said as the search for the mother of NBC News star Savannah Guthrie reached into a third day. The ...

Forbes contributors publish independent expert analyses and insights. A physician who writes about challenges with navigating healthcare. Pacemakers are not designed or approved to provide real‑time ...

On Tuesday, Feb. 3, a law enforcement source told Fox News Digital that Nancy's pacemaker last synced with her Apple devices roughly 2 a.m. on Sunday, Feb. 1. Investigators said they believe that's ...

Authorities searching for Nancy Guthrie are deploying a piece of specialized tracking technology — commonly referred to as a “signal sniffer” — in an effort to detect emissions from her implanted ...

It has been four days since Savannah Guthrie's mother Nancy was abducted from her home in the middle of the night. Police have said they still hope to find the 84-year-old alive, but fears are growing ...