Your Nervous System Controls Your Gut, Hormones, and Weight — Here's How to Fix It

You've cleaned up your diet. You're taking the supplements. You're exercising, sleeping more, and doing everything "right." So why do you still feel exhausted, inflamed, anxious, or stuck? In this encore episode—one of the most impactful Office Hours conversations we've shared—I explore a question that could change the way you think about healing: What if your nervous system is the missing piece? When your body doesn't feel safe, it prioritizes survival over repair, affecting everything from your metabolism and hormones to your gut, immune system, and brain. In today's episode, I break down: Why chronic stress changes your biology—and how nervous system dysregulation can drive inflammation, hormone imbalance, digestive issues, weight gain, and autoimmune disease The difference between living in constant "fight-or-flight" versus a regulated nervous system that supports healing, resilience, and recovery Simple, science-backed strategies to regulate your nervous system, including breathwork, blood sugar balance, strength training, sleep, and daily safety cues Why you can't out-supplement or out-biohack chronic stress—and how creating physiological safety unlocks your body's natural ability to heal Healing isn't just about finding the right supplement or following the perfect diet. It's about creating an environment where your body feels safe enough to repair itself. When you begin working with your nervous system instead of against it, everything else—from your energy and metabolism to your mood and resilience—can start to change. Check out my full conversation with Dr. Scott Sherr HERE. Track your health with Function Health: https://functionhealth.com/mark (Use code MARK2026 for $50 off your membership.) Have a question you’d love answered on Office Hours? Submit it here Resources Mentioned: Listen to my full conversation with Dr. Scott Sherr on nervous system regulation and mitochondrial health.