Fasting is one of the most powerful healing practices in human history—it’s free, requires zero equipment, and your body is literally designed for it. But while it sounds simple, there is a wrong way to do it, especially when it comes to the hormonal "engine switch" that happens in the first 24 hours. In this episode, I walk you through exactly what happens in your body during a 3-day fast, from clearing out "zombie cells" to the 60% drop in aging markers. Thank you to our sponsors! Sunlighten Sauna: https://get.sunlighten.com/axepodcast Manukora Manuka Honey: https://manukora.com/axe Caraway Home: carawayhome.com/drjoshaxe (Use code DRJOSHAXE) for an exclusive discount Watch The Dr. Josh Axe Show every Monday & Thursday on YouTube: https://www.youtube.com/@drjoshaxe?sub_confirmation=1 🎧 Early Access! Our listeners enjoy every episode before anyone else! Tune in below and join our exclusive group of listeners → Spotify: https://bit.ly/DrJoshAxeSpotify Apple Podcast: https://apple.co/3JDvWcS Pre-order my NEW BOOK, Heal Your Cells → https://bit.ly/3QJBcQ5 Watch my free training on how to naturally balance your blood sugar and reverse your symptoms → http://DrAxeDiabetesClass.com Discover practical steps you can take today to start healing your thyroid naturally → http://DrAxeThyroidClass.com If you’re ready to start feeling like yourself again and balance your hormones, take my free class → http://DrAxeHormoneClass.com Uncover what’s really going on in your body with advanced biomarker testing for hormones, thyroid, and metabolism— plus a 1-hour consultation with a Senior Health Advisor! → http://mybloodwork.com CONNECT WITH DR. JOSH AXE Instagram → https://www.instagram.com/drjoshaxe/ Facebook → https://www.facebook.com/DrJoshAxe/ TikTok → https://www.tiktok.com/@thedrjoshaxeshow/ X → https://x.com/drjoshaxe/ LinkedIn → https://www.linkedin.com/in/joshaxe Website → http://thehealthinstitute.com Sign up for my newsletter → https://bit.ly/4oE9Jf3 Ask Dr. Axe → http://speakpipe.com/drjoshaxe Links: Insulin drop during fasting: Molecular Metabolism — https://pmc.ncbi.nlm.nih.gov/articles/PMC7471620/ Glycogen storage: Cleveland Clinic — https://my.clevelandclinic.org/health/articles/23509-glycogen Ghrelin and meal timing: Diabetes Journal — https://diabetesjournals.org/diabetes/article-abstract/50/8/1714/ Growth hormone 14x study: Frontiers in Endocrinology — https://pmc.ncbi.nlm.nih.gov/articles/PMC11842881/ Ketones and brain energy: Annals of Medicine — https://pmc.ncbi.nlm.nih.gov/articles/PMC7877980/ Nobel Prize — Autophagy (Ohsumi): https://www.nobelprize.org/prizes/medicine/2016/press-release/ Insulin resistance prevalence: StatPearls / NCBI — https://www.ncbi.nlm.nih.gov/books/NBK507839/ Immune stem cell reset: USC Valter Longo Lab — https://stemcell.keck.usc.edu/fasting-triggers-stem-cell-regeneration-of-damaged-old-immune-system/ Muscle loss during fasting: Nutrients — https://pmc.ncbi.nlm.nih.gov/articles/PMC9503095/ Food addiction data: Michigan Medicine — https://www.michiganmedicine.org/health-lab/1-8-americans-over-50-show-signs-food-addiction The Didache (c. 100 AD): Chapter 8 DISCLAIMER This content is strictly the opinion of Dr. Josh Axe and is for informational and educational purposes only. It is not intended to provide medical advice or to take the place of medical advice or treatment from a personal physician. All viewers of this content are advised to consult their doctors or qualified health professionals regarding specific health questions. Neither Dr. Axe nor the publisher of this content takes responsibility for possible health consequences of any person or persons reading or following the information in this educational content. All viewers of this content, especially those taking prescription or over-the-counter medications, should consult their physicians before beginning any nutrition, supplement or lifestyle program. MB011DB7DLOWW9T