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

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

Your heart’s job is to keep your pulse steady to pump blood throughout your body. Sometimes your heart rate is slower when you’re relaxing, and sometimes it’s faster when you’re exercising or stressed ...

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

Recycled pacemakers can function as well as new devices, a University of Michigan-led study suggests. These used and reconditioned devices have the potential to increase access to pacemaker therapy in ...

This story is part of a series on the current progression in Regenerative Medicine. This piece discusses the regeneration of the cardiovascular system. In 1999, I defined regenerative medicine as the ...

A pacemaker is a small, battery-powered device that controls the heartbeat. Our heartbeats are controlled by a highly efficient, biological electrical system that ensures our heart steadily pumps ...