Is the Wim Hof Method More Effective than Meditation?
Key findings: 60-second read
- Largest study of the Wim Hof Method to date - 404 healthy adults completed a 29-day trial comparing WHM (in-person and remote) to mindfulness meditation.
- WHM produced greater immediate improvements in energy, mental clarity, and ability to handle stress - these benefits increased with each additional day of practice (dose-dependent effect).
- WHM participants showed progressively greater stress reduction over time - while meditation reduced stress more immediately, WHM's stress-reducing effects grew stronger with repeated practice.
- WHM lowered nighttime respiratory rate - suggesting improved physiological efficiency and reduced sympathetic nervous system activation.
- Potential workplace benefits - WHM participants reported greater increases in psychological safety within their work teams compared to meditation.
What if deliberately exposing yourself to short bursts of stress could make you more resilient, not less?
This is the central question behind a new large-scale study published in Scientific Reports (Fox, Biddell & King, 2025). Researchers recruited 404 healthy adults and randomly assigned them to one of three 29-day interventions: the Wim Hof Method (WHM) in-person, WHM-remote, or mindfulness meditation (active control).
The study is notable for its size, its use of an active control condition (not just a waiting list), and its collection of both subjective and objective measures - including heart rate variability, sleep architecture, respiratory rate, and cognitive testing. The findings reveal a nuanced picture: the Wim Hof Method and meditation offer different benefits, and understanding these differences can help you choose the right practice for your goals.
"Repeated intentional exposure to and recovery from short-term stress, such as that elicited by acute cold exposure and hypoxia induced by cyclic hyperventilation, may help adjust expectations about allostatic regulation."
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What is the Wim Hof Method (WHM)?
The Wim Hof Method consists of three pillars:
- Cyclic hyperventilation (controlled breathwork) - deep, rhythmic breathing followed by breath retention on exhalation.
- Cold exposure - progressive exposure to cold water (showers or ice baths)
- Commitment mindset - patience, dedication, and focus
Together, these practices intentionally activate the body's acute stress response (sympathetic nervous system). The theory is that repeated, controlled exposure to short-term stress can build resilience - a process called hormesis.
Study design: 404 participants, 29 days
This was a semi-randomised controlled trial with three conditions:
- WHM in-person - breathwork plus weekly supervised ice baths (Sydney)
- WHM remote - breathwork plus daily cold showers (at home)
- Mindfulness meditation (active control) - 15-minute guided breath awareness meditation
All participants completed daily surveys before and after their intervention, wore biometric devices (WHOOP straps) to measure sleep and physiology, and completed cognitive tasks (Stroop and N-back tests). The intervention ran for 29 consecutive days during winter (August in Australia/New Zealand) to ensure natural cold water access.
Participant characteristics
226 females, 177 males, 1 other | Mean age 37 years (range 19-65) | Recruited from Australia and New Zealand | Compliance: 64.7% for daily intervention surveys
Momentary benefits: energy, mental clarity and stress handling
The most striking findings came from the daily "pre-post" measurements - how participants felt immediately before and after each day's practice.
Both WHM conditions showed significantly greater improvements in:
- Energy levels
- Mental clarity
- Ability to handle stress
These improvements were larger than those seen in the meditation group. In other words, after a session of WHM breathwork and cold exposure, people felt more energised, clearer-headed, and more capable of dealing with stress than after a meditation session.
"Both WHM and WHM-remote were associated with significantly greater increases in momentary energy levels, mental clarity, and ability to handle stress following the daily intervention compared to the Meditation condition."
The dose-dependent effect: why more practice matters
Perhaps the most important finding was the time-dependent interaction. For the WHM groups, the benefits did not stay the same or diminish over time - they increased with each additional day of practice.
For mental clarity and ability to handle stress, both WHM conditions showed progressively greater improvements over the 29 days relative to meditation. This suggests a cumulative, dose-dependent benefit - the more you practice, the more you gain.
Interestingly, while the meditation group showed greater immediate stress reduction after each session (consistent with the relaxation response), the WHM groups showed a different pattern: their stress reduction started smaller but grew larger with each day of practice. By the end of the 29 days, WHM participants were experiencing stress reductions comparable to or exceeding meditation.
Key finding: hormetic adaptation
"Although WHM participants initially reported a lower reduction in momentary stress levels relative to Meditation, the magnitude of this reduction increased over days on protocol for this group, over and above Meditation. This suggests a cumulative, dose-dependent relationship (i.e., hormetic inoculation)."
Hormesis: how controlled stress builds resilience
The concept of hormesis is central to understanding the WHM. Hormesis refers to the phenomenon where low to moderate doses of a stressor (in this case, cold and controlled hypoxia from breath-holding) trigger adaptive responses that make the organism stronger and more resilient.
Think of it like exercise. A single workout stresses your muscles, but with recovery, they adapt and become stronger. Similarly, deliberate cold exposure and cyclic hyperventilation stress your autonomic nervous system. Over time, your system adapts, becoming more efficient and less reactive to everyday stressors.
The authors propose that repeated WHM practice may recalibrate what they call allostatic self-efficacy - your brain's expectation about how well you can cope with stress. Each time you intentionally expose yourself to a controlled stressor and successfully recover, your brain updates its internal model. You learn that you are capable of handling more than you thought.
Physiological effects: lower respiratory rate
The study also measured objective physiological outcomes using WHOOP biometric devices. The most notable finding was that WHM participants showed significantly lower nighttime respiratory rates compared to the meditation group.
Lower resting respiratory rate is associated with:
- Enhanced cardiovascular efficiency
- Improved ventilatory efficiency
- Reduced sympathetic nervous system activation
Interestingly, the WHM-remote group (daily cold showers) showed significantly lower resting heart rate as well. The in-person WHM group (weekly ice baths) did not show the same resting heart rate benefit, possibly due to the lower frequency of cold exposure (weekly vs daily).
No significant differences were found for heart rate variability (HRV), slow wave sleep, or REM sleep. Sleep quantity was actually higher in the meditation group compared to WHM-remote.
"WHM-remote showed a significantly lower respiratory rate relative to Meditation. Lower resting respiratory rate is associated with enhanced cardiovascular efficiency, improved ventilatory efficiency, and reduced sympathetic nervous system activation."
From my clinical experience: stress inoculation and chronic pain
This research resonates deeply with what I see in my physiotherapy practice, particularly with patients who have chronic pain.
One of the most challenging aspects of persistent pain is that it sensitises the nervous system. Patients live in a state of chronic low-grade threat activation. Their stress response is always on, always vigilant. This not only amplifies pain but also erodes energy, mental clarity, and the sense that you can cope with what life throws at you.
The WHM offers something different from traditional relaxation-based approaches (like meditation). Instead of trying to reduce stress activation, it intentionally activates the stress response in a controlled, predictable, time-limited way. Each session is a micro-dose of manageable stress. Over time, the nervous system learns that stress is not dangerous - it is something you can handle and recover from.
This is exactly the process described in the study as "allostatic self-efficacy." The authors propose that "repeated intentional exposure to and recovery from short-term stress in WHM practices may therefore be encoded by the brain as successful stress coping, thereby adjusting expectations about allostatic self-efficacy and the range of stress that one can cope with and recover from."
For my patients with chronic pain, this concept is transformative. Many have developed a fear of stress - they avoid anything that might trigger their symptoms, which paradoxically shrinks their world and increases their sensitivity. The WHM, done safely and gradually, offers a way to rebuild confidence in their own resilience.
That said, this is not a practice for everyone. Patients with certain medical conditions (hypertension, respiratory conditions, seizures, cardiovascular disease) should not attempt the WHM without medical clearance. And it should never replace evidence-based medical care. But for the right patient, under the right guidance, controlled stress exposure may be a powerful tool for building resilience - both to pain and to life's inevitable stressors.
A clinical perspective
"For patients with chronic pain, the nervous system is stuck in a state of threat. Traditional relaxation approaches try to turn down the volume. The WHM offers something different - it says, 'Let's intentionally turn up the volume in a safe, controlled way, so your brain learns that stress is not dangerous.' This is stress inoculation, not stress avoidance."
A novel finding: psychological safety at work
The study also explored an unexpected outcome. Participants in both WHM conditions reported a significantly greater increase in perceived psychological safety within their work teams compared to the meditation group.
Psychological safety is the belief that your work environment is safe for interpersonal risk-taking - admitting mistakes, asking for help, sharing ideas without fear of negative consequences. It is a key predictor of team performance and individual wellbeing.
The authors suggest that building stress resilience through the WHM may help individuals engage in psychologically safe behaviours that are, by nature, interpersonally risky. This is a novel finding that warrants further research, but it hints at potential workplace applications of stress inoculation training.
Study limitations
Several limitations should be considered:
- Modest compliance (59-67%) - despite reminders and support, daily adherence was lower than ideal
- No passive control group - without a non-intervention control, we cannot rule out expectancy effects or demand characteristics
- Cannot isolate components - the study tested the full WHM protocol, so we cannot determine whether benefits came from breathing, cold exposure, or their combination
- Cold exposure not standardised - home-based cold showers varied in temperature and duration; this may have introduced error variance
- Meditation as active control - the meditation condition was not an optimal mindfulness program; findings should not be interpreted as definitive comparisons with established mindfulness-based interventions
- WHOOP device limitations - while validated for heart rate and sleep quantity, sleep stage detection (REM, SWS) has only moderate accuracy, which may explain null findings for these metrics. Validation studies are also company-funded
- No trait-level differences at 29 days - despite state-level improvements that increased over time, trait psychological measures did not differ between groups after 29 days. Longer interventions may be needed to see trait-level changes
Conclusions: distinct benefits for different practices
This large, well-designed study reveals that the Wim Hof Method and mindfulness meditation offer distinct, complementary benefits:
Wim Hof Method excels at:
- Immediate boosts in energy and mental clarity
- Building the ability to handle stress over time (dose-dependent, cumulative benefit)
- Lowering nighttime respiratory rate (physiological efficiency)
- Potentially improving psychological safety at work
- Faster reaction times on cognitive tasks
Mindfulness meditation excels at:
- Immediate stress reduction (relaxation response)
- Greater reductions in trait anxiety
- Better sleep quantity
- Higher cognitive accuracy (vs speed)
The study's most intriguing finding is the time-dependent, dose-dependent effect in the WHM groups. Benefits did not plateau - they grew with continued practice. This supports the hormesis hypothesis: controlled stress exposure builds resilience cumulatively.
As the authors conclude: "Repeated intentional exposure to and recovery from short-term stress in WHM practices may therefore be encoded by the brain as successful stress coping, thereby adjusting expectations about allostatic self-efficacy and the range (or boundary conditions) of stress that one can cope with and recover from."
One key insight from this research
"The magnitude of improvements (in energy, mental clarity, and ability to handle stress) increased with each additional day on the intervention protocol relative to Meditation. This supports the idea of a possible hormetic, dose-dependent adaptation to repeated controlled stress exposure. The WHM group not only showed greater momentary state improvements compared to Meditation, but these gains grew stronger over the days on the protocol."
Frequently asked questions
Is the Wim Hof Method safe for everyone?
No. The study excluded individuals with heart disease, hypertension, respiratory difficulties, glaucoma, seizures, diabetes, pregnancy, and certain mental health conditions (psychosis, suicidal ideation, bipolar disorder). The breath-holding component can cause loss of consciousness, so it should never be performed near water or while driving. Anyone with medical conditions should consult their doctor before attempting WHM practices.
Do I need ice baths or can I use cold showers?
The study included both. The WHM-remote group used daily cold showers (progressing from 1 to 2.5 minutes over 4 weeks) and still showed significant benefits. The in-person group had weekly ice baths in addition to daily showers. The remote group actually showed some additional benefits (lower resting heart rate) that the in-person group did not, possibly due to the higher frequency of cold exposure (daily vs weekly). Cold showers are an accessible starting point.
How long does it take to see benefits?
The study found that benefits increased with each day of practice - they were dose-dependent. Some benefits (energy, mental clarity) were noticeable immediately after each session. The cumulative stress-reducing effects grew stronger over the 29 days. The authors suggest that longer intervention periods may be needed to see trait-level (enduring) psychological changes.
Can WHM help with chronic pain?
This study did not include chronic pain patients, so direct evidence is lacking. However, the proposed mechanism - building allostatic self-efficacy and recalibrating the brain's stress expectations - is relevant to chronic pain, which is often maintained by a sensitised, hypervigilant nervous system. For patients with chronic pain, gradual, supervised exposure to controlled stressors (including breathwork and cold) may help rebuild resilience, but this should only be done under professional guidance.
Should I do WHM or meditation? Which is better?
The study suggests they offer different benefits, not that one is universally "better." WHM appears better for energy, mental clarity, and building stress tolerance over time. Meditation appears better for immediate stress reduction, sleep quantity, and trait anxiety. The optimal approach may be to use both - WHM in the morning for activation and focus, meditation in the evening for relaxation and recovery.
As a physiotherapist, I am increasingly finding that we need to think differently about stress. The dominant cultural narrative is that stress is bad, that we should avoid it, reduce it, meditate it away. But this study, and the broader science of hormesis, suggests that the right kind of stress - controlled, predictable, time-limited - can be a powerful teacher.
For my patients with chronic pain, fatigue, or burnout, the WHM offers something different from the relaxation approaches they have already tried. It offers a way to build confidence in their own resilience. But it must be done safely, with appropriate medical screening, and ideally with professional guidance.
If you are interested in exploring stress inoculation approaches for chronic pain or stress-related conditions, I am available for telehealth consultations to discuss whether this might be appropriate for you.
- Grant
Living With Persistent Pain?
If your pain has lasted longer than expected, feels disproportionate to injury, or hasn't responded to standard treatment, you may benefit from a more nervous-system-focused approach. Learn more about our chronic pain physiotherapy services in Port Macquarie.
Want personalised guidance?
If you would like help making sense of your aches, pains, or ongoing symptoms, you can book with Grant either in Port Macquarie or via telehealth.
Disclaimer: This information is for educational purposes and does not replace individualised medical advice. The Wim Hof Method involves breath-holding and cold exposure, which carry risks. Do not practice WHM near water, while driving, or if you have any contraindicated medical conditions. Always consult a qualified health professional before starting any new practice. This blog post summarises a published research study (Fox N, Biddell H, King J. A semi-randomised control trial assessing psychophysiological effects of breathwork and cold immersion. Sci Rep. 2025;15:43879); the original source should be consulted for full methodological details.
