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Extreme bathing: common sense safety

The popularity of contrast-bathing is increasing, but there are a few tips to keep it fun – as Dr Marc Cohen explains


Contrast bathing – which involves alternating between hot, cold and thermo-neutral environments – offers multiple health benefits, including improved resilience, recovery and relaxation.

A growing awareness of these benefits has led saunas, hot tubs and ice baths to be used in homes, gyms and bathing facilities without medical supervision. While contrast bathing is both accessible and enjoyable, heat is powerful and too much or too little can harm as well as heal. To avoid adverse effects, it's essential to adhere to these simple safety principles: drink, take care, tune in, be aware and rest.

Drink
Proper hydration is essential to regulate body temperature, detoxify the system and flush away contaminants and waste – yet contrast bathing may cause dehydration. This can be due to excessive sweating caused by heat and increased urine production from extra blood flow through the kidneys caused by cold. It’s therefore vital to stay well-hydrated before, during and after contrast bathing. Adding salt, minerals or herbs to guests' drinking water can further enhance absorption and electrolyte balance.

Take care
Special care is needed around hot or cold elements, as heat sources such as steam or hot surfaces can cause burns or scalds while sub-zero temperatures risk frostnip or frostbite.

Care is also needed to avoid dizziness, faints or falls caused by sudden changes in posture or slippery surfaces. It’s therefore prudent for guests to be advised to move slowly, sit briefly before standing to stabilise blood pressure and also to ensure floors are dry and free of slip hazards.

Tune in
Contrast bathing allows people to experience the joy of cooling down when hot, heating up when cold and the bliss of thermal-neutral comfort. It also evokes “forced mindfulness” – when thermal stress demands complete attention. This provides an opportunity for people to practice staying calm under duress.

To ensure guests stay safe and avoid being overwhelmed, advise them to tune into their feelings, maintain calm breaths and never let themselves be pressured to go beyond their limits. Also ensure they can easily exit, rest and rehydrate whenever needed. This is especially important for those with anxiety or PTSD, as cold exposure can mimic anxiety symptoms.

Be aware
Being aware requires people to actively monitor their reactions and stop the session, drink some water and rest if they experience adverse symptoms such as fainting, dizziness, nausea, uncontrolled shivering or excessive discomfort.

It's important for guests to avoid going beyond feeling "comfortably uncomfortable" at any time and also wise for them to avoid contrast bathing while under the influence of drugs or alcohol. Consult a healthcare provider if they have heart issues or other conditions of concern.

Rest
Rest is vital after contrast bathing, much like relaxation at the end of a yoga class. Deep relaxation in a comfortable thermo-neutral environment lets the mind and body settle into homeostatic equilibrium and experience the deep stillness that comes with actively doing nothing. Doing nothing is not just a form of relaxation, it’s a profound spiritual practice that fosters a sense of being in balance with nature.
Enjoy
Contrast bathing allows people to build resilience under stress and experience deep relaxation. To minimise risks, prioritise comfort, progress slowly and consult a healthcare provider if you have any concerns about your guests.

"Contrast bathing is accessible and enjoyable but too much or too little heat can harm" – Dr Marc Cohen, medical doctor, university professor and holistic health practitioner

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Uniting the world of spa & wellness
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News   Products   Magazine   Subscribe
Spa Business opinion
Extreme bathing: common sense safety

The popularity of contrast-bathing is increasing, but there are a few tips to keep it fun – as Dr Marc Cohen explains


Contrast bathing – which involves alternating between hot, cold and thermo-neutral environments – offers multiple health benefits, including improved resilience, recovery and relaxation.

A growing awareness of these benefits has led saunas, hot tubs and ice baths to be used in homes, gyms and bathing facilities without medical supervision. While contrast bathing is both accessible and enjoyable, heat is powerful and too much or too little can harm as well as heal. To avoid adverse effects, it's essential to adhere to these simple safety principles: drink, take care, tune in, be aware and rest.

Drink
Proper hydration is essential to regulate body temperature, detoxify the system and flush away contaminants and waste – yet contrast bathing may cause dehydration. This can be due to excessive sweating caused by heat and increased urine production from extra blood flow through the kidneys caused by cold. It’s therefore vital to stay well-hydrated before, during and after contrast bathing. Adding salt, minerals or herbs to guests' drinking water can further enhance absorption and electrolyte balance.

Take care
Special care is needed around hot or cold elements, as heat sources such as steam or hot surfaces can cause burns or scalds while sub-zero temperatures risk frostnip or frostbite.

Care is also needed to avoid dizziness, faints or falls caused by sudden changes in posture or slippery surfaces. It’s therefore prudent for guests to be advised to move slowly, sit briefly before standing to stabilise blood pressure and also to ensure floors are dry and free of slip hazards.

Tune in
Contrast bathing allows people to experience the joy of cooling down when hot, heating up when cold and the bliss of thermal-neutral comfort. It also evokes “forced mindfulness” – when thermal stress demands complete attention. This provides an opportunity for people to practice staying calm under duress.

To ensure guests stay safe and avoid being overwhelmed, advise them to tune into their feelings, maintain calm breaths and never let themselves be pressured to go beyond their limits. Also ensure they can easily exit, rest and rehydrate whenever needed. This is especially important for those with anxiety or PTSD, as cold exposure can mimic anxiety symptoms.

Be aware
Being aware requires people to actively monitor their reactions and stop the session, drink some water and rest if they experience adverse symptoms such as fainting, dizziness, nausea, uncontrolled shivering or excessive discomfort.

It's important for guests to avoid going beyond feeling "comfortably uncomfortable" at any time and also wise for them to avoid contrast bathing while under the influence of drugs or alcohol. Consult a healthcare provider if they have heart issues or other conditions of concern.

Rest
Rest is vital after contrast bathing, much like relaxation at the end of a yoga class. Deep relaxation in a comfortable thermo-neutral environment lets the mind and body settle into homeostatic equilibrium and experience the deep stillness that comes with actively doing nothing. Doing nothing is not just a form of relaxation, it’s a profound spiritual practice that fosters a sense of being in balance with nature.
Enjoy
Contrast bathing allows people to build resilience under stress and experience deep relaxation. To minimise risks, prioritise comfort, progress slowly and consult a healthcare provider if you have any concerns about your guests.

"Contrast bathing is accessible and enjoyable but too much or too little heat can harm" – Dr Marc Cohen, medical doctor, university professor and holistic health practitioner

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Inspired by the science of cellular rejuvenation and driven by the desire to optimise skin health an [more...]
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21-23 Jun 2026

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Midlands (Venue TBA), Liphook, United Kingdom
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World Bathing Day

Worldwide,
+ More diary  
 


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