← Home / Cold & Heat / Wim Hof / Breathwork & Cold Protocol
Cold & HeatStressResilienceHappinessAnxietyBeginner Anxiety & Stress

Breathwork & Cold Protocol

Use breath and cold to train a calmer, more controllable stress response. The core practice is free, and the evidence for its anti-inflammatory effect is among the strongest in this category.

❄️
"The Iceman" · The Wim Hof Method
Not endorsed · Based on the published work of Wim Hof
Daily time
15 to 20 min
Steps
5
Difficulty
Beginner
Sources
6
View the steps →
What it is

The Wim Hof Method has three pillars: cyclic breathing, deliberate cold exposure, and a focused, meditative mindset. The breathing alternates rounds of deep 'power breaths' with breath retention, which shifts CO2 and oxygen balance and raises adrenaline on demand. Cold exposure is added gradually, from cold showers to plunges. Practised regularly, it trains your autonomic nervous system and raises baseline stress resilience.

Why it works
In a landmark 2014 PNAS study, trained practitioners voluntarily activated their sympathetic nervous system and blunted the inflammatory response to an injected endotoxin, something previously thought impossible. A 2022 follow-up found the breathing and cold combined was more effective than either alone. The breathing drives an adrenaline rise; the cold trains stress tolerance and alertness.
The evidence
Sources
Published work by Wim Hof, cited straight to the source: long-form episodes, clips, peer-reviewed papers and their own writing. Select any to view it here.
1
Guided Wim Hof Method Breathing (official · watch the safety video first)
Video
2
Voluntary activation of the sympathetic nervous system and attenuation of the innate immune response in humans (Kox et al., PNAS 2014)
Paper · PNAS · doi 10.1073/pnas.1322174111 · PMID 24799686
3
The effects of cold exposure training and a breathing exercise on the inflammatory response (Zwaag et al., 2022)
Paper · Psychosomatic Medicine, 2022
4
The science behind the Wim Hof Method (study library)
Article
5
Wim Hof breathing before sports
Clip
6
Psychophysiological effects of breathwork and cold immersion (Fox, Biddell & King, Scientific Reports 2025)
Paper · Scientific Reports (Nature Portfolio) 15, 43879; doi 10.1038/s41598-025-29187-9
Source viewer
Loading the first source…
The protocol
Clinical strong human trials Mixed some or emerging evidence Commercial weak or unproven, sold widely Equipment / Test not an evidence claim How we grade →
Breathing

Power-breath rounds with retention

3 to 4 rounds: 30 to 40 deep breaths, then exhale and hold as long as comfortable, then a ~15 sec recovery hold

Shifts CO2/O2 balance and raises adrenaline, training nervous-system control.

Wim Hof Method
For this step
No product needed
Mindset

Stay focused and relaxed throughout

Sit or lie down, eyes closed, attention on the breath

The meditative pillar; also keeps the practice safe and controlled.

Wim Hof Method
For this step
No product needed
Cold

Finish with deliberate cold

Start with 1 to 2 min cold shower; progress over weeks toward a plunge

Trains stress tolerance and gives a clean, durable alertness boost.

Wim Hof Method
For this stepEquipment
Cold plunge tub
A cold shower is the free version
Progress

Build cold tolerance gradually

Increase duration and decrease temperature slowly over weeks

Adaptation and safety; do not rush the cold.

Wim Hof Method
For this step
No product needed
Learn (optional)

Follow a structured course

The official Wim Hof Method app or course for guided progression

Useful for correct, safe technique; the breathing itself remains free.

Wim Hof Method
For this stepEquipment
Guided breathwork course or app
A structured, guided progression
Is this for you?
Good fit if
  • Stress and anxiety management
  • People who want a free daily resilience practice
  • Anyone easing into cold exposure
  • Those who want a focused morning reset
Cautions
  • Never do the breathing in or near water, while driving, or standing where a fall could injure you; the hyperventilation can cause lightheadedness or fainting
  • Epilepsy, cardiovascular conditions, high blood pressure or pregnancy: avoid or clear with a doctor first
  • Cold exposure: cardiac conditions, clear with a doctor
  • Educational only, not medical advice
Related protocols
Update history
  • July 3, 2026 Protocol published.
Get the next protocol first

New expert protocols and evidence updates, cited to the source. No spam; unsubscribe anytime.

Not medical advice. This page is for education only and is not a substitute for professional medical care. Consult a qualified clinician before changing your health routine.
Independent curation. YourProtocol.ai is an independent platform. This protocol is based on the publicly available work of Wim Hof and is not created, reviewed, endorsed by, or affiliated with Wim Hof or "The Iceman" · The Wim Hof Method.

Breathwork & Cold Protocol
Follow the steps
View steps