SHONA SARTIN: I went in like shut down mode because I didn't know where it was coming from and... ANGIE MILES: Shona Sartin is remembering 2012 when the unexpected onset of epileptic seizures disrupted her life.

SHONA SARTIN: And I'm just pretty much trying to figure out what's wrong with my brain, and I'm tired of taking all this medication and, but once I got the implant, everything started going good.

Everything got a lot better.

ANGIE MILES: The team that restored function for Sartin minimizing seizures and enabling her to cook, drive, and exercise again is at Virginia Commonwealth University.

KENICHIRO ONO: We use electrical stimulation to treat seizures that don't get better or controlled with usual medications.

SHONA SARTIN: The embrace is located here, but you'll never see it.

ANGIE MILES: They're using electrodes and implants for a technique known as deep brain stimulation.

PAUL KOCH: Those electrodes are then connected to a smart device, basically a tiny computer and battery that gets implanted under the skin and controls the kind of electrical stimulation that those wires can deliver.

ANGIE MILES: Other technology may come to the rescue of those suffering with no sense of smell, a much larger number since the pandemic.

RICHARD COSTANZO: We get letters and emails all the time from individuals who have lost their sense of smell, and expressed to us their frustrations that physicians keep telling them there's nothing that could be done.

And now we're providing hope for those people, and that's very gratifying.

ANGIE MILES: In development, is a device that picks up vapors of odors in the air.

DANIEL COELHO: It's an odor detector paired with a processor that when it receives odor A, the processor will say, "Okay, that's odor A," and now it sends out a unique stimulating pattern to an electrode.

ANGIE MILES: So with the aid of a computer, the ability to smell is restored.

These researchers say their interventions are based on dumb technology.

They program the computers to carry out specific commands, but in the near future, computers will use artificial intelligence recognizing patterns and learning how to help the patient without the help of medical professionals.