Life, Alchemized
Life, Alchemized is a podcast about the quiet, powerful work of inner transformation.
Hosted by leadership coach and neuroscience-informed practitioner Natasha Sheyenne, this show explores how psychology, neuroscience, and mental wellness intersect with real life. Not as optimization. Not as hustle. But as support.
Each episode invites you to look beneath your habits, stress patterns, and inner narratives to understand what’s actually happening in your mind and nervous system—and how small, compassionate shifts can create meaningful change. From burnout and self-talk to agency, resilience, emotional regulation, and sustainable effort, Life, Alchemized translates complex science into human language you can use.
This is a space for people who are tired of pushing and ready to listen more accurately to themselves. For those who want growth without self-abandonment. Clarity without urgency. Strength that includes softness.
Because transformation doesn’t require becoming someone new. It happens when you learn how to work with yourself—gently, intelligently, and with care.
Life, Alchemized
Regulation Before Mindset
Use Left/Right to seek, Home/End to jump to start or end. Hold shift to jump forward or backward.
In today's episode, we explore how the nervous system sets the limits of cognition and why regulation is the missing layer beneath learning, leadership, and growth. Practical tools show how to return to the window of tolerance so effort turns into capability rather than burnout.
Book recommendation: Emotional Inflammation, by Lise van Susteren and Stacey Colino
For more insights on psychology, neuroscience, and mental wellness, you can go to my website, www.natashasheyenne.com for my blog, events, courses, and to sign up for my newsletter.
Thank you for listening to Life, Alchemized.
If something here resonated, let it settle before you rush forward.
Awareness is already movement
Setting The Promise: Regulation
SPEAKER_00Welcome to Life Alchemized, where science meets inner transformation. Today I'm going to talk about the window of tolerance and why regulation is the hidden work beneath learning, mindset, and change. There's a quiet assumption most of us carry into learning leadership and growth. And the assumption is that if something isn't working, the answer is more effort. We're going to try harder, push through, get tougher, reframe your mindset, and be resilient. But the nervous system does not respond to instructions. It responds to conditions. And that's where the window of tolerance enters the conversation. Not as a therapeutic concept and not as a soft skill, but as the missing explanation for why so much well-intentioned effort fails to stick. The window of tolerance describes the range of nervous system activation where a person can remain present, connected, and capable of learning. And inside this window, you can feel emotions without being overtaken by them. You can think clearly while holding complexity. You can stay curious in the face of uncertainty. And you can receive feedback without collapsing or becoming defensive. So basically, you can adapt. Outside this window, the nervous system shifts priorities. And learning is no longer the goal, but survival is. And I want to be clear here that this is not a character flaw. It is biology doing exactly what it is designed to do. When activation rises too high, the system moves into hyper-arousal. So your thoughts speed up and your attention narrows and everything feels urgent. The body is mobilized for action, but reflection drops offline. So you may recognize this as anxiety and irritability, defensiveness, perfectionism, or even a constant sense of pressure to fix things immediately. When activation drops too low, the system moves into hypoarousal. So that's where your energy drains and emotions flatten and thinking becomes sluggish and your motivation disappears. And in this, you might feel numb and disengaged and foggy, or even just quietly checked out. Neither of these states is wrong. They are protective responses, but neither of them is where learning happens. Learning requires a very specific internal climate, enough activation to stay engaged, but enough safety to stay open. And that balance zone is the window. The idea is often associated with the work of Don Siegel, and it reflects a broader truth found across trauma research, affective neuroscience, and learning science. And that's that the nervous system sets the limits of cognition. Before we can think differently, we have to be regulated enough to think at all. And what's important to understand is that the window is not fixed. It expands and contracts depending on stress, sleep, past experiences, psychological safety, and a sense of control or predictability. And this is why two people can sit in the same meeting and hear the same message and walk away with completely different internal experiences. One person is processing and maybe the other person is surviving. When we look at the brain, this begins to make even more sense. The prefrontal cortex, the part of the brain responsible for reflection and decision making and emotional regulation and learning from experience, that part of our brain functions best when the nervous system is regulated. When threat is detected, resources shift away from this region and towards survival circuits. The amygdala becomes louder. Speed matters more than nuance, and certainty matters more than curiosity. This trade-off is super efficient in danger, and it is devastating for growth. His under threat, memory consolidation weakens, and our cognitive flexibility narrows. Feedback becomes personal, and mistakes feel dangerous rather than informative. And this is why telling someone to just adopt a growth mindset often falls flat. Mindset is not a belief problem, it's a regulation problem. A growth mindset requires enough nervous system safety to tolerate uncertainty, to sit with not knowing yet, and to see effort as information rather than evidence of inadequacy. When someone is outside their window, mindset hardens. Protection replaces curiosity, and control replaces learning. But this is where the alchemy can come in. Alchemy was never about forcing transformation. It's about creating the right conditions for change to occur. The window of tolerance works the same way. Effort outside the window often turns into burnout, shame, over control, or disengagement. And that same effort inside the window becomes skill and insight and confidence and capability. The work then is not to push harder. The work is to notice when the system is leaving the window and respond with support rather than judgment. The nervous system usually signals this first through the body. So you'll feel it in tightness in the jaw, shallow breathing, a sense of urgency without clarity, or on the other side, a heaviness, a slumped posture, a quiet withdrawal from engagement. And again, these are not failures, they are cues. Awareness doesn't instantly fix regulation, but it gives you a choice. And that choice is the beginning of agency. There are simple ways to guide yourself back to the window, not by forcing calm, but by signaling safety. One of the most effective is orientation. So gently bringing attention to the environment, noticing what you can see, hear, or feel, because this reminds us and reminds the nervous system that you are here now and not under immediate threat. Breath can also act as a dial. So lengthening the exhale slightly longer than the inhale tells the body it doesn't need to mobilize as urgently. It lowers activation without shutting you down. And if you think about it, that's also the type of breathing we do when we're sleeping. So we usually can sleep when we feel safe. Our body then says, okay, these longer exhales signal to me that this is a safe environment. Predictability matters more than we often admit. Asking yourself what the next clear, contained step is can stabilize your system. And so can naming what you do know when uncertainty feels overwhelming. Another powerful practice is pendulation. And when something feels intense, that means you intentionally shift attention to something neutral or grounding for a moment and then return. And this trains your nervous system to move through the window instead of flooding or collapsing. And over time, this will widen your capacity. And perhaps most importantly, language matters. When we tell ourselves we should be able to handle something, we add shame to stress. But when we reframe it as the nervous system needing support to stay open, we remove that moral judgment from biology. This really changes how leaders can lead. It changes how learning is designed, and it changes how people relate to themselves during challenge. The window of tolerance is not about avoiding difficulty. That would be impossible. But it's about meeting difficulty without losing access to your full capacity. It's the difference between enduring and integrating, between surviving and learning, and between forcing change and becoming capable of it. And when we can understand this, we stop demanding resilience and start designing conditions. When individuals understand this, they stop judging themselves and start working with their nervous system rather than against it. And sometimes people hear this kind of stuff and they think it's very woo-woo or hippie, but the science is there. And this is not softness, it's precision. And in precision is where the real growth begins. The book I would like to recommend is Emotional Inflammation by Stacey Calino and Lise von Susterin. Emotional inflammation puts language to something that many people feel but struggle to name. And that's the low-grade chronic agitation that comes not from a single crisis, but from living too long in a state of overload. The authors describe emotional inflammation as the nervous system's response to sustained stress, uncertainty, and threat. So not acute trauma, but that constant drip just of modern life. What makes this book especially powerful is that it removes that moral judgment from emotional struggle. The authors frame reactivity, shutdown, anxiety, and vigilance not as personal flaws, but as biological responses that once made sense. And in doing so, they invite readers to shift from self-criticism to understanding. And this perspective aligns directly with the window of tolerance. Emotional inflammation is what happens when the nervous system spends too much time outside the window, oscillating between hyper-arousal and shutdown. So this book doesn't argue for eliminating stress or thinking positively. Instead, it focuses on restoring the balance by working with the body, with your nervous system, and with the conditions that shape our internal state. In the book, they have this framework called the Restore Framework, and it mirrors what regulation science consistently shows. Learning, clarity, and effective action only become possible when the nervous system feels resourced enough to stay present. Regulation is not the reward for growth, it is the prerequisite. This book doesn't ask you to become calmer, it helps you become more regulated, more self-aware, and more capable of responding rather than reacting. And in that sense, it's not just a book about emotional health, it's a book about widening your capacity to live and lead well. Thank you for listening to Life Alchemized. If something here resonated, let it settle before you rush forward. Awareness is already movement.