Nervous System Literacy for Yoga Teachers

The parasympathetic nervous system is often positioned as the goal—rest, relax, downregulate. But that framing is incomplete. In this episode, we re-examine the parasympathetic branch not as the hero, but as a moderator working in dynamic balance with sympathetic activation.Through the lens of anatomy, neurochemistry, and applied practice, this episode offers a more precise understanding of how the nervous system actually functions—and what that means for how you teach.What you’ll learn:• Why “rest and digest” is only a partial picture of the parasympathetic system• How breath, sound, and vocalization influence vagal activity and regulation• The role of acetylcholine in heart rate, cognition, and digestion• How the gut and brain communicate—and why it matters for mood and stress• What happens at the extreme end of parasympathetic activation• What nervous system flexibility actually means in a yoga context• How your sequencing, pacing, and use of touch shape regulation in the roomThe goal isn’t calm. It’s flexibility.If this lens resonates with your teaching, I invite you to subscribe to Nervous System Literacy for Yoga Teachers on Substack. You’ll receive new essays — and their related podcast — delivered directly to your inbox twice a month, so you don’t have to go searching for them.And if you’re curious about how this perspective translates into hands-on work, you can learn more about Rubber Band Method® at rubberbandmethod.com. This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit literacy.rubberbandmethod.com

The HPA Axis: When the Alarm Won’t Turn OffUnderstanding the body’s slow-burn stress systemIn this episode, we move beyond the fast-acting sympathetic response and into the body’s longer-lasting stress system: the HPA axis. You’ll learn how this hormonal cascade shapes energy, mood, sleep, and recovery—and why chronic stress can linger in the body long after a moment has passed.What you’ll learn in this episode:What the HPA axis is and how it works (hypothalamus → pituitary → adrenal)Why cortisol is not the enemy—and the essential role it plays in daily functionHow the cortisol awakening response and diurnal rhythm support energy and focusWhat happens when stress becomes chronic and the feedback loop breaks downHow long-term stress affects sleep, inflammation, memory, and moodWhy some students feel wired and exhausted at the same timeWhat chronic stress patterns can look like in a yoga classroomHow yoga can support stress regulation over time, without positioning it as a quick fixThis episode is part of a foundational series on nervous system literacy for yoga teachers—bridging science, lived experience, and practical application in the classroom.To receive new essays and audio episodes delivered twice monthly, subscribe on Substack at literacy.rubberbandmethod.com. This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit literacy.rubberbandmethod.com

Episode 3 — The Sympathetic Nervous System: Your Body’s AcceleratorWhy Fight or Flight Is Only Part of the StoryThe sympathetic nervous system is often blamed for stress, anxiety, and burnout. But that story is incomplete.In reality, the sympathetic nervous system is the body’s activation system — the branch that mobilizes energy, sharpens attention, and prepares us to engage with challenge, movement, and life itself.In this episode, we look beyond the simple “fight or flight” narrative and explore what sympathetic activation actually does in the body.In this episode, you’ll learn:• Why “fight or flight” only captures a small part of what the sympathetic nervous system actually does• How sympathetic activation mobilizes energy for movement, challenge, and engagement• The key physiological changes that occur during activation — including heart rate, breathing, blood flow, and digestion• The roles of epinephrine, norepinephrine, and cortisol in the body’s stress response• Why sympathetic activation in your students is not failure — it’s physiology doing its jobUnderstanding the sympathetic nervous system helps yoga teachers interpret what they see in the room with more clarity and less judgment.Yoga becomes powerful not by eliminating activation, but by helping the body learn how to move through activation and return to balance.You can read the full essay and subscribe to future posts at:literacy.rubberbandmethod.com This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit literacy.rubberbandmethod.com

Episode #2The Autonomic Nervous System: Your Invisible Co-TeacherWhat’s actually running the room when you’re running the roomYoga teachers often interpret student behavior through the lens of effort or attitude. But much of what we see on the mat is actually the nervous system doing exactly what it’s designed to do.In this episode, we explore the autonomic nervous system (ANS) — the system that regulates heart rate, breathing, digestion, and stress responses — and why understanding it can change how we interpret what’s happening in a yoga class.Students arrive carrying an autonomic state shaped by their day, their stress load, and sometimes patterns built over years. Understanding this framework gives teachers a clearer, more compassionate lens for what’s unfolding in the room.In this episode• What the autonomic nervous system is• The sympathetic and parasympathetic branches• Why these systems are never simply “on” or “off”• The difference between homeostasis and allostasis• Why nervous system flexibility — not constant calm — is the real marker of healthSubscribe to Nervous System Literacy for Yoga Teachers on Substack to receive new essays and podcast episodes twice per month. This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit literacy.rubberbandmethod.com

What if the yoga classroom isn’t just a room full of bodies — but a room full of nervous systems?In this opening episode, Kiara Armstrong shares the lived experience that led to the creation of Nervous System Literacy for Yoga Teachers.After years of navigating severe dysregulation and misdiagnosed Complex PTSD, Kiara began studying the nervous system from the inside out — learning to track regulation and dysregulation through thought patterns, sleep, illness, energy, and behavior. What began as a personal healing journey became a lens through which she now understands yoga spaces.This episode introduces the foundation of the podcast: nervous system literacy.Rather than presenting techniques or instruction, this conversation sets the stage for the work ahead — exploring how regulation and dysregulation shape what happens in yoga classrooms and why understanding the stress continuum changes the way we teach.Future episodes will explore the science, philosophy, and real-world application of nervous system literacy in yoga spaces.If you’re a yoga teacher who believes yoga heals — and wants to understand how and why, this space is for you.Welcome. Let’s begin.About KiaraKiara Armstrong is a yoga teacher, massage therapist, somatic practitioner, and founder of Rubber Band Method® — an anatomy-informed, consent-centered methodology for hands-on assists and adjustments in yoga. Her book, Hands-On Yoga Assists, was published by Human Kinetics in 2025.Learn more at:www.rubberbandmethod.com This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit literacy.rubberbandmethod.com

Why does yoga regulate the nervous system — and why should teachers understand the biology behind it?In this introductory episode, I share the vision behind Nervous System Literacy for Yoga Teachers — a space where anatomy, physiology, somatics, and research meet the lived reality of teaching in a yoga classroom.We’ll explore the autonomic nervous system, vagal tone, co-regulation, consent, and hands-on touch — alongside the ways classical yoga philosophy often mirrors what modern science now measures.If you teach yoga and want to understand not just that yoga works, but how and why it works at the level of the nervous system, this podcast is for you.New episodes release twice monthly.Subscribe on Substack or follow wherever you listen to podcasts. This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit literacy.rubberbandmethod.com