Mental Health & Wellbeing

Movement Breaks, Screen Time, and Talking to Kids About It All

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June 2, 2026
4
min read
Delaney Ruston, MD
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In Summary

Tech journalist Manoush Zomorodi recently shared with Delaney the story behind her new book Body Electric and the citizen science experiment she ran with NPR and Dr. Keith Diaz of Columbia. The 20,000-person study found that five minutes of movement for every thirty minutes of sitting dropped fatigue by up to 28%, lowered blood glucose and blood pressure, and improved focus and mood. Plus, five practical reframes for talking to kids about movement without the eye rolls.

I recently had the pleasure of sitting down with Manoush Zomorodi, the brilliant tech journalist and host of TED Radio Hour, to talk about her new book Body Electric. (Listen to our conversation here in my latest podcast episode)

Manoush has spent years helping people think critically about their relationship with technology, from her early days at New Tech City and Note to Self to her "Bored and Brilliant" experiment with NPR listeners. She's the kind of thinker who doesn't just report on a problem; she builds a community around solving it. 

Her latest focus is something that affects every single one of us who spends long hours in front of a screen: what all that sitting is actually doing to our bodies, and what we can do about it.

It started when Manoush heard about research by Dr. Keith Diaz, a physiologist at Columbia University Medical Center, regarding the minimum amount of movement the human body needs to avoid serious health consequences. 

His lab found that five minutes of movement, such as walking, for every thirty minutes of sitting had outsized benefits. He found it cut blood glucose levels, lowered blood pressure, restored focus, and boosted mood and energy. 

Inspired, Manoush partnered with Dr. Diaz and NPR to launch a massive citizen science experiment called Body Electric. They enrolled 20,000 people across three groups: movement breaks every 30 minutes, every hour, or every two hours. The results were striking.

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Fatigue dropped by up to 28% for those taking the most frequent breaks, and even those who took a break every two hours saw a 23% drop. 80% of participants stuck with it, 82% actually enjoyed the breaks, and productivity slightly improved rather than declined. The study has since been accepted for scientific publication.

So how do we bring this into our conversations with kids and teens without the eye rolls? Here are a few approaches I took away from my conversation with Manoush:

  1. Reframe movement as something they get to do, not something they have to do. Instead of "you need to go exercise," try "did you get to move today?" That small shift from obligation to opportunity changes the whole tone.
  2. Swap a screen question for a movement one. Rather than leading with "you've been on that screen too long," pivot to "what does your body need right now?" It keeps the focus positive.
  3. Make it about curiosity and self-discovery. Manoush gave her son a simple nightly questionnaire during the pandemic that asked questions like whether he ate well, slept okay, and moved around during the day. She never even read his answers; the point was for him to start noticing his own patterns and how his body felt based on how he treated it.
  4. Use destinations and experiments to make movement low-key. "Let's go check on those geese at the end of the block," rather than  "Let's go for a walk." And framing it as an experiment like "Let’s rate how we feel before and after,” makes kids scientists of their own experience.
  5. Model it unabashedly, even when it's embarrassing. Manoush and I both admit we've exercised at airports while our kids cringed. But we both agreed that when kids see us doing something good for ourselves, they absorb that it's normal. Her teenage kids now regularly take themselves out for walks, completely on their own. And so do mine. And my kids don’t bat an eye if they see me doing push-ups in odd places.


Our New Movie - Screenagers: Generation AI

Releasing this coming September, Screenagers: Generation AI explores what can be done to mitigate the risks artificial intelligence poses to young people's learning, relationships, and mental health.

We wrote about the movie in this recent blog and on the movie's page here.

If your interested in bringing this movie to your school or community in the fall, you can register your interest at this page.

host a screening

Learn more about showing our movies in your school or community!

Podcast

Join Screenagers filmmaker Delaney Ruston MD for our latest Podcast

Learn more about our Screen-Free Sleep campaign at the website!

Screenagers elementary edition

Our movie made for parents and educators of younger kids

Podcast

Join Screenagers filmmaker Delaney Ruston MD for our latest Podcast

Screenagers:
Generation AI

Register your interest in bringing our new movie to your school or community

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Mental Health & Wellbeing

Movement Breaks, Screen Time, and Talking to Kids About It All

Delaney Ruston, MD
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June 2, 2026

As we’re about to celebrate 10 years of Screenagers, we want to hear what’s been most helpful and what you’d like to see next.

Please click here to share your thoughts with us in our community survey. It only takes 5–10 minutes, and everyone who completes it will be entered to win one of five $50 Amazon vouchers.

I recently had the pleasure of sitting down with Manoush Zomorodi, the brilliant tech journalist and host of TED Radio Hour, to talk about her new book Body Electric. (Listen to our conversation here in my latest podcast episode)

Manoush has spent years helping people think critically about their relationship with technology, from her early days at New Tech City and Note to Self to her "Bored and Brilliant" experiment with NPR listeners. She's the kind of thinker who doesn't just report on a problem; she builds a community around solving it. 

Her latest focus is something that affects every single one of us who spends long hours in front of a screen: what all that sitting is actually doing to our bodies, and what we can do about it.

It started when Manoush heard about research by Dr. Keith Diaz, a physiologist at Columbia University Medical Center, regarding the minimum amount of movement the human body needs to avoid serious health consequences. 

His lab found that five minutes of movement, such as walking, for every thirty minutes of sitting had outsized benefits. He found it cut blood glucose levels, lowered blood pressure, restored focus, and boosted mood and energy. 

Inspired, Manoush partnered with Dr. Diaz and NPR to launch a massive citizen science experiment called Body Electric. They enrolled 20,000 people across three groups: movement breaks every 30 minutes, every hour, or every two hours. The results were striking.

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Fatigue dropped by up to 28% for those taking the most frequent breaks, and even those who took a break every two hours saw a 23% drop. 80% of participants stuck with it, 82% actually enjoyed the breaks, and productivity slightly improved rather than declined. The study has since been accepted for scientific publication.

So how do we bring this into our conversations with kids and teens without the eye rolls? Here are a few approaches I took away from my conversation with Manoush:

  1. Reframe movement as something they get to do, not something they have to do. Instead of "you need to go exercise," try "did you get to move today?" That small shift from obligation to opportunity changes the whole tone.
  2. Swap a screen question for a movement one. Rather than leading with "you've been on that screen too long," pivot to "what does your body need right now?" It keeps the focus positive.
  3. Make it about curiosity and self-discovery. Manoush gave her son a simple nightly questionnaire during the pandemic that asked questions like whether he ate well, slept okay, and moved around during the day. She never even read his answers; the point was for him to start noticing his own patterns and how his body felt based on how he treated it.
  4. Use destinations and experiments to make movement low-key. "Let's go check on those geese at the end of the block," rather than  "Let's go for a walk." And framing it as an experiment like "Let’s rate how we feel before and after,” makes kids scientists of their own experience.
  5. Model it unabashedly, even when it's embarrassing. Manoush and I both admit we've exercised at airports while our kids cringed. But we both agreed that when kids see us doing something good for ourselves, they absorb that it's normal. Her teenage kids now regularly take themselves out for walks, completely on their own. And so do mine. And my kids don’t bat an eye if they see me doing push-ups in odd places.


Our New Movie - Screenagers: Generation AI

Releasing this coming September, Screenagers: Generation AI explores what can be done to mitigate the risks artificial intelligence poses to young people's learning, relationships, and mental health.

We wrote about the movie in this recent blog and on the movie's page here.

If your interested in bringing this movie to your school or community in the fall, you can register your interest at this page.

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Mental Health & Wellbeing

Movement Breaks, Screen Time, and Talking to Kids About It All

Delaney Ruston, MD
June 2, 2026

I recently had the pleasure of sitting down with Manoush Zomorodi, the brilliant tech journalist and host of TED Radio Hour, to talk about her new book Body Electric. (Listen to our conversation here in my latest podcast episode)

Manoush has spent years helping people think critically about their relationship with technology, from her early days at New Tech City and Note to Self to her "Bored and Brilliant" experiment with NPR listeners. She's the kind of thinker who doesn't just report on a problem; she builds a community around solving it. 

Her latest focus is something that affects every single one of us who spends long hours in front of a screen: what all that sitting is actually doing to our bodies, and what we can do about it.

It started when Manoush heard about research by Dr. Keith Diaz, a physiologist at Columbia University Medical Center, regarding the minimum amount of movement the human body needs to avoid serious health consequences. 

His lab found that five minutes of movement, such as walking, for every thirty minutes of sitting had outsized benefits. He found it cut blood glucose levels, lowered blood pressure, restored focus, and boosted mood and energy. 

Inspired, Manoush partnered with Dr. Diaz and NPR to launch a massive citizen science experiment called Body Electric. They enrolled 20,000 people across three groups: movement breaks every 30 minutes, every hour, or every two hours. The results were striking.

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for more like this, DR. DELANEY RUSTON'S NEW BOOK, PARENTING IN THE SCREEN AGE, IS THE DEFINITIVE GUIDE FOR TODAY’S PARENTS. WITH INSIGHTS ON SCREEN TIME FROM RESEARCHERS, INPUT FROM KIDS & TEENS, THIS BOOK IS PACKED WITH SOLUTIONS FOR HOW TO START AND SUSTAIN PRODUCTIVE FAMILY TALKS ABOUT TECHNOLOGY AND IT’S IMPACT ON OUR MENTAL WELLBEING.  

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