StretchLearn Course

Breathe Better. Feel the Difference Immediately.

A practical, science-backed course on diaphragmatic breathing, CO2 tolerance, and breath-hold training for beginners.

Beginner9 hrSelf PacedRegistered

Course Overview

What this course is designed to develop

This course demystifies the science behind breathing — chemoreceptor sensitivity, the Bohr effect, and autonomic balance — then translates that science into practical protocols you can use immediately. You will progress from correct diaphragmatic mechanics through nasal breathing habits, box breathing for acute stress, and structured breath-hold training. By the end you will have a personalised daily breathwork stack and the physiological literacy to adapt it as your needs change.

Learning Outcomes

What the learner should be able to understand, build, or execute.

Demonstrate correct diaphragmatic breathing mechanics and measure your natural breathing rate

Explain CO2 tolerance and its role in calm, focus, and endurance, and track progress with a BOLT score

Execute box breathing and physiological sigh protocols to down-regulate the nervous system within minutes

Apply breath-hold progressions safely using tables and walks to raise CO2 tolerance

Design a personalised daily breathwork stack targeting energy, sleep, or performance goals

Identify contraindications and apply safety rules for hypoxic breath-hold practices

Curriculum Preview

Inside the curriculum: a structured path from fundamentals to execution.

Preview the course structure, see how the modules build on one another, and understand the path this program is designed to take you through.

Module 1

Module 1: The Physiology of Breathing

Understand why most people breathe incorrectly and how breathing mechanics, CO2 chemistry, and autonomic balance work so you can apply every protocol with full understanding.

3 lessons

How Breathing Actually WorksContent · 45 min

Preview Enabled

Diaphragmatic Breathing MechanicsContent · 45 min

LMS Access

Measuring Your Baseline — the BOLT ScoreContent · 45 min

LMS Access

Module 2

Module 2: CO2 Tolerance Training

Raise your BOLT score through nasal breathing habits, reduced-breathing drills, and breath-hold walks to permanently recalibrate your chemoreceptors.

3 lessons

Nasal Breathing — Your First CO2 ToolContent · 45 min

LMS Access

Reduced Breathing DrillsContent · 45 min

LMS Access

Breath-Hold Walks and TablesContent · 45 min

LMS Access

Module 3

Module 3: Acute Regulation Protocols

Apply targeted breathing techniques — box breathing, physiological sighs, and extended exhale patterns — to shift your nervous system state on demand.

3 lessons

Box Breathing for Stress and FocusContent · 45 min

LMS Access

The Physiological Sigh and Extended ExhaleContent · 45 min

LMS Access

Activating Breathing — Energise and ElevateContent · 45 min

LMS Access

Module 4

Module 4: Building Your Daily Breathwork Practice

Integrate all protocols into a sustainable personalised daily stack, learn to troubleshoot common problems, and understand how to periodise breathwork alongside other training.

3 lessons

Designing Your Daily Breathwork StackContent · 45 min

LMS Access

Troubleshooting and Common MistakesContent · 45 min

LMS Access

Periodisation and Long-Term ProgressContent · 45 min

LMS Access

Built for Application

A complete learning path, not a one-off inspiration hit.

This program is designed around progression: focused lessons, structured modules, applied resources, assessments, and a course rhythm that turns information into usable capability.

breathworkdiaphragmatic breathingCO2 tolerancebox breathingBOLT scorenervous systemstress reliefbreath-hold training