# Episode 381: PhysFlex Cert Closing Tonight: Eustress vs Distress, the 4 Pillars, and Applying Recovery Tools the Right Way

Page: https://stenobird.com/podcast/flex-diet-podcast-880226/episode-381-physflex-cert-closing-tonight-eustress-vs-distress-the-4-pillars-and-applying-recovery-tools-the-right-way
Text version: https://stenobird.com/podcast/flex-diet-podcast-880226/episode-381-physflex-cert-closing-tonight-eustress-vs-distress-the-4-pillars-and-applying-recovery-tools-the-right-way.md
Podcast: [Flex Diet Podcast](https://stenobird.com/podcast/flex-diet-podcast-880226)
Published: 2026-04-27T16:45:47+00:00
Episode link: https://flex-diet-podcast.simplecast.com/episodes/episode-379-physiologic-flexibility-certification-open-temperature-ph-fuels-and-breathing-for-performance-gHrkJs3r-1fMCUfPr
Audio file: https://cdn.simplecast.com/media/audio/transcoded/53e3d261-c5f9-44f9-a22d-bab6ffed6551/2ea3e4d9-cc52-4227-aaaf-5243dca4406b/episodes/audio/group/9db21e72-c964-42c5-af28-0b63411281e5/group-item/c2605d42-37ca-4f8d-a9c6-a143ec30167e/128_default_tc.mp3?aid=rss_feed&feed=_12E74LS
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Duration seconds: 983

## Resource

In this short Flex Diet Podcast episode, I share a reminder that the PhysFlex Surge enrollment closes Monday, April 27, 2026 at midnight PST, and I give more context on what’s inside the PhysFlex Certification. I explain how Level 1 (Flex Diet Cert) covers nutrition and recovery basics, while Level 2 (Physiologic Flexibility) focuses on becoming more robust and resilient by improving the four pillars of homeostatic regulation: temperature, pH, fuels (including ketones), and air (managing oxygen and CO2). I walk through my eustress vs distress model, why most interventions work better with lower intensity and higher frequency, and how misapplying tools like cold immersion, sauna, or breathing methods can backfire without the right context.

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## Transcript

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