“Current Evidence Does NOT Support Zone 2 Training”

Dr Brad Stanfield August 21, 2025
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Dr Brad Stanfield

@drbradstanfield

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Primary Care Physician Learn the latest research and clinical guidelines on preventative medicine and how to look & feel younger than your age. Full guide (free) found here: https://drstanfield.com/pages/roadmap TLDR: focus on diet, exercise, sleep, meditation, life purpose, and socializing FAQ #1 Are you really a medical doctor? Yes, I practice in New Zealand and here's my registration: https://www.mcnz.org.nz/registration/register-of-doctors/doctor/stanfield-bradley-desmond #2 When did you start this channel? November 2019 #3 Should I see my own doctor about the information presented on this channel? The content I present on this channel is not intended to replace individual viewers’ relationships with their own medical practitioner. Always speak with your doctor before using any products, services, or devices discussed on this channel.

Video Description

For weekly health research summaries and extra insights, sign up here 👉 https://drstanfield.com/pages/sign-up 💊 Supplements I Take: https://drstanfield.com/pages/my-supplements 💊MicroVitamin+ (Pro) Powder: https://drstanfield.com/products/microvitamin-plus 💊MicroVitamin Standard Capsules: https://drstanfield.com/products/microvitamin Timestamps: 0:00 Are We Wrong About Zone 2 Training? 0:36 What is Zone 2 Training (in plain English)? 1:29 Two Big Promises of Zone 2 Training 3:04 Zone 2 Controversy & The New Study 4:02 Is Zone 2 Best for Mitochondrial Health? 6:50 Is Zone 2 Best for Fatty Acid Oxidation Capacity? 8:32 The Verdict on Zone 2 for Non-Elite Athletes 9:08 The Importance of High Intensity Exercise 10:19 Key Takeaways and Conclusions 📜 Roadmap - how to look young & feel strong: https://drstanfield.com/pages/roadmap ✔️ Twitter: https://twitter.com/BradStanfieldMD ✔️ Patreon: https://www.patreon.com/bradstanfieldmd Here are the links to the research papers referenced in the video: https://link.springer.com/article/10.1007/s40279-025-02261-y https://pubmed.ncbi.nlm.nih.gov/31674658/ https://pmc.ncbi.nlm.nih.gov/articles/PMC5766985/ https://www.thieme-connect.de/products/ejournals/abstract/10.1055/s-0030-1249621 https://journals.physiology.org/doi/full/10.1152/japplphysiol.00030.2001 https://onlinelibrary.wiley.com/doi/10.1002/oby.21206 https://www.sciencedirect.com/science/article/pii/S1728869X23000424 https://www.internationaljournalofcardiology.com/article/S0167-5273(14)00394-5/abstract Thumbnail by James Kelly Video edited by Troy Young Script by John Milliken The links above are affiliate links, so I receive a small commission every time you use them to purchase a product. The content contained in this video, and its accompanying description, is not intended to replace viewers’ relationships with their own medical practitioner. Always speak with your doctor regarding the content of this channel, and especially before using any products, services, or devices discussed on this channel.

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