Breathwork & Nervous System Shifts from Campbell

A science-led, holistic approach to breath, grounded in physiology, shaped by years of clinical and coaching practice.

The archive

Recent writing

Is Breathwork Evidence-Based? What the Research Actually Says

Breathwork sits on a spectrum from well-studied physiological technique to loosely-supported experiential practice, and knowing the difference matters. Here is what the research actually supports, and where the evidence gets genuinely thin.

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Box Breathing vs. Coherent Breathing vs. Physiological Sigh: When to Use Which

Not every breathing technique does the same job. Box breathing steadies you in a high-stakes moment, coherent breathing builds a calmer baseline over time, and the physiological sigh is the fast reset when stress hits now.

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Why Anxious, Successful People Can't Just "Relax"

You've built the career, the family, the life that looks like it's working, and "just relax" still lands as useless advice. Campbell Will on why relaxation is a physiological state, not a decision, and what actually shifts it for high performers.

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Childhood Breathing Patterns and Adult Anxiety: The Surprising Link

If you had childhood asthma, allergies, or were a mouth breather as a kid, that pattern may still be running in the background, and quietly maintaining the anxiety you're dealing with now. Physiotherapist and breathwork educator Campbell Will explains the mechanical link, and what can actually be do

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What Is Nervous System Dysregulation? Signs, Causes, and Why It's Not "Just Stress"

If your body won't switch off, or won't switch back on, you're likely describing nervous system dysregulation, a physiological condition that won't resolve through willpower or insight alone. Campbell Will explains what it is, what drives it, and what actually reaches the layer where it lives.

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Why Clients Progress in Session and Regress at Home (And What Actually Fixes It)

Your client leaves calmer and more regulated, then arrives next week right back where they started. Here's why that pattern happens, and the physiological fix that actually makes progress hold.

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Your breath is the door.

Every article here starts from the same premise: your symptoms are information, not the problem. Understand the physiology underneath them: the mechanics, the chemistry, the autonomic state, and the tools finally have something to hold onto.

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Reading is the start. Practice is the shift.

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