The Washington Post
By Kenneth R. Rosen
January 1, 2022 at 9:00 a.m. EST
For decades, doctors have embedded pacemakers, cochlear implants and cardiac defibrillators into their patients’ bodies. More recently, consumers have started tracking their own heart rates and number of steps taken with watches, bracelets, cellphones and other wearable devices.
Researchers and doctors are now dreaming up more ways to merge those technologies, to move consumer-driven monitors inside bodies.