Jeff Dunn

CEO of Redivus Health, Father, Kansas Citian, Hospitalist, Techie, Lover of some good Sushi

[Denis Beganovic @Beganovic2026]

2026 Fortune 500 companies

[Redivus Health @RedivusHealth]

By pairing ongoing education with a deadline to go paperless, Golden Valley Memorial Healthcare achieved rapid adoption of the Redivus resuscitation platform & transformed how their team responds to & documents cardiac arrest events:
https://t.co/dCHNop9ZS0
#codebluedocumentation

[Sahil Bloom @SahilBloom]

I broke my phone addiction in 30 days.

• Screen Time down ~70%
• Phone pickups down ~50%

I reclaimed 4 hours 30 minutes per day. That's 1,635 hours across a full year. 68 days of life from a single behavior change.

Here's exactly what I did (save this):

1. Grayscale Mode

Put your phone on Grayscale Mode for the entire day.

Grayscale Mode removes the colors to make your phone immediately less appealing and addicting.

It takes 30 seconds to set up.

If you have an iPhone, follow these steps:

• Settings
• Accessibility
• Display & Text Size
• Color Filters -> On
• Grayscale

Next, create a simple shortcut:

• Settings
• Accessibility
• Accessibility Shortcut
• Color Filters

Now, if you triple-click the side button, you'll be able to toggle it on and off.

For non-iPhone users, you can find instructions​ with a simple search.

I kept my phone on Grayscale at all times and only removed it for specific reasons (like posting something that required me to see the color, looking at photos, etc.).

It made me less interested in grabbing my phone for the random "just checks" during the day.

2. No-Phone Zones

Set specific locations, times, and events where you won't have your phone on you.

I called them No-Phone Zones:

• Downstairs (kitchen, living room)
• Creative flow time (from ~5-8am)
• Family flow time (from ~5-7pm)
• Family gatherings

During these windows, my phone would be in a lock box or in a drawer in my office. If we were out at a family gathering, I would leave it in the car or in my wife's bag where I couldn't feel it.

Specifically listing out these No-Phone Zones had the benefit of making it a clear rule that I could cement in my mind.

Create your list of No-Phone Zones. Write it down if you need to.

3. Strategic Friction

Even with the Grayscale Mode and No-Phone Zones, my phone addiction intervention would have been difficult to execute without this final piece of the puzzle.

Motivation and discipline are never enough when you're trying to crack a deeply entrenched behavior.

There's a theory in cognitive science called Choice Architecture, which is the idea that you can design your environment to make good choices easier and bad choices harder.

Basically, I wanted to add strategic friction to make it much easier to adhere to my rules (and much more difficult to break them).

Three primary ways I did that:

1. I locked my phone in a ​lock box​ during my morning creative flow (5-8am) and evening family flow (5-7pm). It was a timed lock so I couldn’t get it without emailing the company.

2. I left my phone far away from where I was going to be working. If I wanted to get it, I'd have to walk to the other side of the house or down a few flights of stairs to get it.

3. I added really low screen time restrictions to social apps. If I wanted to overuse them, I'd have to keep approving more time, which felt like letting myself down when I did it.

Breaking the addiction is going to be difficult at first. Create strategic friction that helps you stick to the change. Make it difficult to make a bad choice.

The Life Impact

I'm not going to sugarcoat it at all:

This was the single most powerful behavior change I've ever made in terms of the tangible impact and ripple effects on my life.

That is not an exaggeration.

I was more present, less stressed, and able to connect on an entirely different level. In short, I showed up more aligned with how my ideal self would.

My capacity for deep work expanded significantly from simply placing my phone in another room or a lock box.

I got more done, faster, at a higher quality bar. It was like the holy trinity of productivity improvement, with no fancy productivity tool required.

Reviewing the research, this isn't surprising: There is clear ​scientific evidence​ that even having your phone in your pocket or on your desk reduces your cognitive capacity.

I felt happier and less stressed immediately upon making the change.

So, just keeping score...

This was a single, zero cost behavior change that had the net effect of:

• Improving my relationships
• Improving my work
• Improving my happiness

To be completely transparent, just a few days in, the only negative thought I had related to the intervention was simple:

Why didn't I do this sooner?

I hope this is the push you need to make this change in your life.

Start small and stick to it. Aim for a 10-20% screen time reduction week-over-week. Keep yourself accountable with a friend.

Having now gone through it, I can guarantee you'll see and feel the positive impact immediately.

Onward and upward.

[Jeff Dunn @jsduhs]

@mcuban Can you run for president and fix our healthcare system? It needs to be blown up

[Jeff Dunn @jsduhs]

@RedivusHealth @RedCross Incredibly excited about this 🔥🔥🔥

[Redivus Health @RedivusHealth]

We're thrilled to partner with the American @RedCross on the new Resuscitation Suite App for healthcare providers. Our technology powers the app that supports training, simulations and real-life resuscitation events.
Learn more: https://t.co/qnvrXRtKYE

[FOX Sports PR @FOXSportsPR]

25,984,000 viewers tuned in for the @Dodgers back-to-back, dramatic clinch of the Fall Classic across FOX, FOX Deportes and FOX Sports streaming services - the most since 2017. 🏆

🏔️ On FOX, #WorldSeries Game 7 peaked with 31,543,000 viewers from 11:30-11:45 PM ET

Numbers are according to Nielsen Panel Only Fast Nationals and Adobe Analytics; Final viewership information is expected Tuesday, Nov. 4.

[MLB @MLB]

The @Royals are 24-14 since July 6th, the best record in the American League 💪

[JE Dunn Construction @JEDunn]

JE Dunn is now an investor in @lovbneb , Omaha’s pro women’s volleyball team! After a strong first season, we’re excited to support their growth as they enter year two. #WomensSports #Volleyball #JEDunnOmaha #LOVB

[Hassan @Heyhassan]

Dear Son,

Remember these 12 Enduring Truths.

You may not understand them now,

But one day, you will: 👇

[Sahil Bloom @SahilBloom]

There’s nothing better than a hard-earned breakthrough. You kept showing up when the rewards were uncertain. When it was lonely. When you were misunderstood. And then one day, there it is. A tiny spark. A sliver of light. It’s the moment you realize every unseen rep was worth it.

[NEJM Evidence @NEJMEvidence]

“Such advancements, if they could be reduced to safe and effective practice, could enable lung- and diaphragm-protective ventilation with minimal human intervention, even when expert personnel are not available.” Read the full editorial: https://t.co/uIji8ZNwbo

#CriticalCare

[Redivus Health @RedivusHealth]

Next week, our founder and CEO, Dr. Jeff Dunn, will speak on a panel presented by @thesandboxkc and @DigitalHealthKC called "From Concept to Clinic: Lessons in Commercializing Health Tech."
Register online: https://t.co/YdubJsYklm

@jsduhs #digitalhealth #soundbytes #healthtech

[Redivus Health @RedivusHealth]

If a newborn stops breathing, every action clinicians take is critical to the outcome. Redivus Health's neonatal resuscitation software is a powerful tool for the low frequency, high stakes event of #neonatal #resuscitation.

Learn more: https://t.co/naadx64q4X

#NRP #NALS

[Tommy Dunn @tommymdunn02]

@Nickdunn35 4th long ball today. OPS is around .1000 for the year in one of the best JUCO divisions in the country!💪🏻

[Jeff Dunn @jsduhs]

@BUncommitted @BBUncommitted @3leftsbaseball @PB_Uncommitted

[Nick Dunn @Nickdunn35]

Season so far

BA- .346
OBP- .424
SLG- .556
3 Home Runs
8 Doubles
99-Exit Velo
91- Out field Velo

[Nick Dunn @Nickdunn35]

Season so far

BA- .346
OBP- .424
SLG- .556
3 Home Runs
8 Doubles
99-Exit Velo
91- Out field Velo

[Redivus Health @RedivusHealth]

When a newborn stops breathing, every second - and every decision - matters. Redivus' NEW Neonatal Resuscitation software for clinicians provides real-time guidance and documentation for the #NRP / #NALS algorithm.
Schedule Demo: https://t.co/naadx64q4X
#resuscitation #NICU

[Jeff Dunn @jsduhs]

It is amazingly good….I’m on my 2nd time through now!

[Scott Becker @BKRBusinessMin]

Enjoying the book a great deal by @SahilBloom on the five types of wealth. Fantastic.

[Sahil Bloom @SahilBloom]

This is good