Saunas and cold plunge pools are becoming increasingly popular across the UK, appearing in beaches, city farms, and parks. Enthusiasts tout various mental and physical benefits, but what does the scientific evidence say?
Podcast revisits the evidence
In this episode from April, Madeleine Finlay revisits the topic with Ian Sample and Dr Heather Massey, associate professor at the University of Portsmouth's extreme environments laboratory. They discuss the current state of research on saunas and cold plunges, examining claims about improved circulation, reduced inflammation, and enhanced mood.
What the science shows
Dr Massey explains that while some studies suggest benefits, much of the evidence is preliminary or based on small sample sizes. For example, regular sauna use has been linked to lower cardiovascular risk, but the mechanisms are not fully understood. Cold plunges may reduce muscle soreness after exercise, but the effects on overall health are less clear.
The podcast also explores potential risks, including hypothermia and cardiovascular strain, especially for individuals with underlying conditions. Listeners are encouraged to approach these practices with caution and consult healthcare professionals.
