Discover
Is cold water therapy good for you?
Cold water therapy has become increasingly popular in recent years. There are cold water retreats, celebrity followers and even TV shows dedicated to this new trend. Supporters claim it can help with everything from your circulation to your mental health. But what does cold water therapy involve exactly and is there any evidence behind the claims?
What is cold water therapy?
Cold water therapy means immersing your body in cold water (water that’s less than 15°C). To give you a rough idea, the water coming from your cold tap at home will be less than 20°C (and usually between 10 and 20°C). Cold water therapy can involve taking an ice bath, a cold shower or having an outdoor swim. Whichever you choose, it’s usually only for a few minutes at a time. There are also centres and retreats that run more tightly controlled cold water immersion therapy sessions.
Ice swimming is a more extreme type of cold water swimming. This is swimming in water that’s no more than 5°C. It’s become popular in recent years as part of the Wim Hof method. This combines cold therapy, breathing techniques and mind exercises. It aims to get your body and mind into the best possible condition.
What are the benefits of cold water therapy?
Cold water therapy has been reported to benefit the body in many ways, including:
- reducing muscle pain and stiffness after exercise, by reducing swelling and inflammation
- improving risk factors for cardiovascular disease, such as blood pressure and cholesterol levels
- boosting the immune system, helping to lower the risk of infection
- improving general wellbeing, and possibly helping with depression
But the evidence is often quite scarce, and based on small studies or anecdotal evidence (people’s personal experiences). This doesn’t mean it’s not right. It just means that there’s not enough scientific evidence to support all the claims.
There has been some evidence for the Wim Hof method having a possible benefit in inflammatory-related conditions. But further research is needed to say for certain. And it could be the breathing techniques and meditation that provide the benefit, rather than the exposure to extreme cold.
Is cold water therapy safe?
Cold water puts your body under stress. This is how it’s believed to produce many of the positive effects, like boosting the immune system. But it also means it can be dangerous, and even fatal for some people. Cold water immersion can trigger:
- cold water shock – an automatic response where your heart rate increases and you lose control of your breathing
- arrhythmias (heart rhythm disorders)
- hypothermia, when your core temperature gets too cold
Building up sessions gradually can help your body to adapt to the cold and lessen the risk of cold water shock. Many of these problems are more likely if you have any underlying medical conditions, such as problems with your heart or asthma. If you’re concerned about how cold water therapy may affect you, discuss it with your GP before trying it. Remember – cold water therapy won’t be suitable for everybody.
How can I try cold water therapy?
If you want to try cold water therapy, it’s important to keep sessions brief and build them up gradually. Here are some pointers to get you started.
- Try a cold shower first. This is less intense than outdoor swimming, and can help to test how your body responds. Gradually reduce the temperature and increase the length of time you spend in cold water as your body gets used to it.
- If you want to try open water swimming, find an organised group or session, supervised by experts. Never go alone. Start in the summer months, when waters aren’t so cold. Again, build up the time you spend in the water slowly.
- After your session, warm up gradually by removing wet clothes, drying yourself and dressing in warm layers. Having a warm drink and something to eat (preferably sweet) can help. Don’t have a hot bath or shower, as the sudden change in temperature can be dangerous.
Do you know how healthy you truly are? Bupa health assessments give you a clear overview of your health and a view of any future health risks. You'll receive a personal lifestyle action plan with health goals to reach for a happier, healthier you.
-
Sources Sources
- Bleakley C, McDonough S, Gardner E, et al. Cold‐water immersion (cryotherapy) for preventing and treating muscle soreness after exercise. Cochrane Database of Systematic Reviews 2012, Issue 2. Art. No.: CD008262. DOI: 10.1002/14651858.CD008262.pub2
- Knechtle B, Waśkiewicz Z, Sousa CV, et al. Cold water swimming - benefits and risks: a narrative review. Int J Environ Res Public Health. 2020;17(23):8984. doi:10.3390/ijerph17238984
- Hot and cold water systems. Health and Safety Executive. www.hse.gov.uk, accessed 14 June 2022
- Wim Hof method. www.wimhofmethod.com, accessed 14 June 2022
- Yeung SS, Ting KH, Hon M, et al. Effects of cold water immersion on muscle oxygenation during repeated bouts of fatiguing exercise: a randomized controlled study. Medicine (Baltimore). 2016;95(1):e2455. doi:10.1097/MD.0000000000002455
- Buijze GA, De Jong HMY, Kox M, et al. An add-on training program involving breathing exercises, cold exposure, and meditation attenuates inflammation and disease activity in axial spondyloarthritis - A proof of concept trial. PLoS One 2019;14(12):e0225749. doi: 10.1371/journal.pone.0225749
- Kox M, van Eijk LT, Zwaag J, et al. Voluntary activation of the sympathetic nervous system and attenuation of the innate immune response in humans. PNAS 2014; 111(20): 7379-84
- Afterdrop and the subtle art of warming up. The Outdoor Swimming Society. www.outdoorswimmingsociety.com, accessed 14 June 2022
About our health information
At Bupa we produce a wealth of free health information for you and your family. This is because we believe that trustworthy information is essential in helping you make better decisions about your health and wellbeing.
Our information has been awarded the PIF TICK for trustworthy health information. It also follows the principles of the The Information Standard.
More discover articles...
Did you find our advice helpful?
We’d love to hear what you think. Our short survey takes just a few minutes to complete and helps us to keep improving our healthy lifestyle articles.
Legal disclaimer
This information was published by Bupa's Health Content Team and is based on reputable sources of medical evidence. It has been reviewed by appropriate medical or clinical professionals and deemed accurate on the date of review. Photos are only for illustrative purposes and do not reflect every presentation of a condition.
Any information about a treatment or procedure is generic, and does not necessarily describe that treatment or procedure as delivered by Bupa or its associated providers.
The information contained on this page and in any third party websites referred to on this page is not intended nor implied to be a substitute for professional medical advice nor is it intended to be for medical diagnosis or treatment. Third party websites are not owned or controlled by Bupa and any individual may be able to access and post messages on them. Bupa is not responsible for the content or availability of these third party websites. We do not accept advertising on this page.
For more details on how we produce our content and its sources, visit the About our health information section.
^We may record or monitor our calls
