How a Pacemaker May Help Locate Nancy Guthrie — Even Though It’s ‘Not a GPS Chip’ (Exclusive)

An expert tells PEOPLE why pacemakers have Bluetooth technology, and how it can help locate Savannah Guthrie’s missing mother ...

Can a pacemaker track you? Nancy Guthrie case highlights tech limits.

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

Does Nancy Guthrie have a pacemaker and could it help find her?

Unconfirmed media reports say Nancy Guthrie's pacemaker stopped syncing with her Apple devices. Here's what that means.
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How do pacemakers and defibrillators work? A cardiologist explains how they interact with the electrical system of the heart

Add Yahoo as a preferred source to see more of our stories on Google. Electrocardiograms, or ECGs, record the electrical activity of your heart. Randy Faris/The Image Bank via Getty Images Your ...