Sign up to save your podcasts
Or
Share Episode 70: Why “Doing Everything Right” Still Isn’t Working, with Jason Yun
Share to email
Share to Facebook
Share to X
Share to email
Share to Facebook
Share to X
Or
Episode 70: Why “Doing Everything Right” Still Isn’t Working, with Jason Yun
Send us Fan Mail
What if your fatigue, gut flares, hormone issues, and “wired but tired” nights aren’t just about food… but about timing?
In this episode, I’m joined by Jason Yun, a circadian rhythm and mitochondrial health coach (and former fitness studio owner) to talk about the often-missed foundations of health: light, sleep, and circadian signaling—and how modern indoor life quietly disrupts everything from digestion to hormones to mood.
Jason shares his personal health breakdown—upside-down cortisol and melatonin patterns, sleep disruption, and hormonal chaos—and how it led him to completely pivot his career away from traditional fitness and nutrition… and into circadian rhythm work.
If you’ve tried diets, supplements, and protocols but still feel stuck, this conversation will open up a whole new angle to consider.
In This Episode, You’ll Learn:
- What circadian rhythm really is—and why it impacts sleep, digestion, hormones, energy, blood pressure, and bowel movements
- Jason’s story: from gym owner + nutrition coach to chronic hormone disruption… and what helped him turn it around
- Why mitochondrial health is at the center of energy (and why “eat better + exercise more” isn’t always enough)
- The “3-legged stool” of health Jason uses: light, water, magnetism
- The #1 habit for circadian alignment: seeing sunrise with your naked eyes
- Why your eyes are the master circadian control center (hello, SCN / “master clock”)
- Why we’re living backwards: dark days + bright nights (and why that’s a problem)
- How indoor life contributes to circadian disruption—and the surprising “lux” truth even on cloudy days
- How to start sunrise viewing if you’re sensitive to light (and what “blue light toxicity” looks like)
- Why winter should change your routines (more sleep, less intensity, more recovery)
- Jason’s take on SAD lamps, red light panels, and “biohacking”
- How EMFs can affect health—and simple mitigation strategies (especially at night)
- The dopamine connection: how sunlight supports dopamine (and why screens drain it)
- Blue light blocking glasses 101 (day vs orange vs red lenses)
- Why nasal breathing matters—and why mouth tape can be a powerful tool
Jason Yun Links & Resources
Improvement Warrior Podcast
Spotify: https://open.spotify.com/show/7fcvZdw1yT2VOJv6agr6Pi
Apple Podcasts: https://podcasts.apple.com/us/podcast/improvement-warrior-podcast/id1558708319
Recommended Episodes:
- Winter Sun Log: Episode 71
- Summer Sun Log: Episode 80
- Cell Phones and Wireless Tech: Episode 54
- Leptin Webinars: Episode 55
Breath Webinar (YouTube)
https://youtu.be/1ije5PzsGfE
Improvement Warrior Newsletter
http://www.improvementwarriorfitness.com/nl
Social Links
YouTube: http://youtube.com/yuntraining
Twitter/X: http://twitter.com/yuntraining
Facebook: http://facebook.com/sun.yun.jason
Instagram: http://instagram.com/sun.yun.jason
LinkedIn: linkedin.com/in/jasonyun3010
Link to my free training “The Root Cause Approach to Gut Healing”—my step-by-step framework to stop guessing and start healing
Link to a free 30 minute Gut Check Call
Link to my website
Disclaimer: None of the content discussed is meant to be taken as medical advice. All information presented is for educational purposes only and listeners and viewers assume all responsibility around implementing any changes to their health and medical regimen.
View all episodes
By Courtney Cowie NTP, FDN-PSend us Fan Mail
What if your fatigue, gut flares, hormone issues, and “wired but tired” nights aren’t just about food… but about timing?
In this episode, I’m joined by Jason Yun, a circadian rhythm and mitochondrial health coach (and former fitness studio owner) to talk about the often-missed foundations of health: light, sleep, and circadian signaling—and how modern indoor life quietly disrupts everything from digestion to hormones to mood.
Jason shares his personal health breakdown—upside-down cortisol and melatonin patterns, sleep disruption, and hormonal chaos—and how it led him to completely pivot his career away from traditional fitness and nutrition… and into circadian rhythm work.
If you’ve tried diets, supplements, and protocols but still feel stuck, this conversation will open up a whole new angle to consider.
In This Episode, You’ll Learn:
- What circadian rhythm really is—and why it impacts sleep, digestion, hormones, energy, blood pressure, and bowel movements
- Jason’s story: from gym owner + nutrition coach to chronic hormone disruption… and what helped him turn it around
- Why mitochondrial health is at the center of energy (and why “eat better + exercise more” isn’t always enough)
- The “3-legged stool” of health Jason uses: light, water, magnetism
- The #1 habit for circadian alignment: seeing sunrise with your naked eyes
- Why your eyes are the master circadian control center (hello, SCN / “master clock”)
- Why we’re living backwards: dark days + bright nights (and why that’s a problem)
- How indoor life contributes to circadian disruption—and the surprising “lux” truth even on cloudy days
- How to start sunrise viewing if you’re sensitive to light (and what “blue light toxicity” looks like)
- Why winter should change your routines (more sleep, less intensity, more recovery)
- Jason’s take on SAD lamps, red light panels, and “biohacking”
- How EMFs can affect health—and simple mitigation strategies (especially at night)
- The dopamine connection: how sunlight supports dopamine (and why screens drain it)
- Blue light blocking glasses 101 (day vs orange vs red lenses)
- Why nasal breathing matters—and why mouth tape can be a powerful tool
Jason Yun Links & Resources
Improvement Warrior Podcast
Spotify: https://open.spotify.com/show/7fcvZdw1yT2VOJv6agr6Pi
Apple Podcasts: https://podcasts.apple.com/us/podcast/improvement-warrior-podcast/id1558708319
Recommended Episodes:
- Winter Sun Log: Episode 71
- Summer Sun Log: Episode 80
- Cell Phones and Wireless Tech: Episode 54
- Leptin Webinars: Episode 55
Breath Webinar (YouTube)
https://youtu.be/1ije5PzsGfE
Improvement Warrior Newsletter
http://www.improvementwarriorfitness.com/nl
Social Links
YouTube: http://youtube.com/yuntraining
Twitter/X: http://twitter.com/yuntraining
Facebook: http://facebook.com/sun.yun.jason
Instagram: http://instagram.com/sun.yun.jason
LinkedIn: linkedin.com/in/jasonyun3010
Link to my free training “The Root Cause Approach to Gut Healing”—my step-by-step framework to stop guessing and start healing
Link to a free 30 minute Gut Check Call
Link to my website
Disclaimer: None of the content discussed is meant to be taken as medical advice. All information presented is for educational purposes only and listeners and viewers assume all responsibility around implementing any changes to their health and medical regimen.