
Jon Hacker
Founder and CEO of NeurGear, creator of the ZenBud ultrasound vagus nerve stimulator
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Sep 15, 2026
Ultrasound to Calm the Nervous System | Jon Hacker
12:29
12:44
13:02

Robert LufkinHOST
So maybe walk us through what it actually does and why, why the vagal tone has become such a hot biomarker for, for stress resilience, and even longevity.

Jon HackerGUEST
So long story short, if your body is stressed out constantly, it's not gonna do good things for you.

Jon HackerGUEST
So you don't directly control your vagus nerve's activity, right? It's going on regardless, keeping your heart pumping, talking to your lungs to an extent, and just keeping your body in that constant, everything's okay, and that rest and digest.
17 MINS LATER
181: Ultrasound vs. Electricity for Vagus Nerve Stimulation? f. Jon Hacker
7:07
7:17
7:23
61:50

Jon HackerGUEST
And there is a really potent argument when you compare auricular versus cervical stimulation, right? Which comes down to the fibers, right? The amount of fibers going up and down in cervical and auricular regions.

Jon HackerGUEST
We wanted this to be more targeted, and we did not want to get efferent fibers activated.

Jon HackerGUEST
So efferent fibers are fibers leading to the brain, giving information to your brain about what's happening in the body.
54 MINS LATER

Navaz HabibHOST
I would love to hear about the technology a little bit, the tool and the research of it.
Ultrasound Vagus Nerve Stimulation Explained: Jon Hacker on Zenbud & Nervous System Tech
22:49
23:00
F
22:42Freddie KimmelHOST
Say that one time, your nervous system will always choose short-term survival.

Jon HackerGUEST
When it is in survival state, you'll always choose and optimize for survival in that moment.

Jon HackerGUEST
And the problem is, is there it seems to be that there's a lot of people that are stuck in the survival state for like 90 to 95 percent of the time for years on end, if not even 100 percent of the time.
F
27:19Freddie KimmelHOST
And there's some other things that I question about the physiology of the vagus nerve, i.e., from my understanding, yes, it goes from the brain to the body, but does the signaling of the vagus nerve, is that a peripheral signal also coming from my hands and my feet? What does that feedback loop look like?
Vagus Nerve Stimulation Explained | How to Reset the Nervous System Naturally
0:00

Jon HackerGUEST
When I was very young, I developed some decently severe OCD, and the way I escaped that, ironically enough, was getting obsessed with the cause, which is your n-