As the search for Savannah Guthrie's mother, Nancy, continues, a cardiologist explains how pacemakers work and if they can be ...

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

Information about Nancy Guthrie's pacemaker helped authorities piece together a new timeline in her kidnapping. Can the devices track you?

The FBI is using "sophisticated" technology to try to locate Nancy Guthrie's pacemaker, as the search for the mother of US TV host Savannah Guthrie enters its third week.

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

One part of the investigation into the disappearance of "Today" show host Savannah Guthrie's mother focuses on the missing ...

Dr. Srihari S. Naidu speaks with Parade to answer all our questions about pacemakers.

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 ...

A pacemaker from Medtronic, newly approved by the Food and Drug Administration, allows patients to securely transmit data from the pacemaker to their physicians via a smartphone or tablet using ...

WASHINGTON -- The government has approved a pacemaker outfitted with a tiny transmitter that can tell your doctor how your heart is doing -- the first medical implant capable of such real-time ...