What's Happening: Using Saunas as Preparation for Heatwaves
As summer temperatures soar, the trend of sweat baths is on the rise, with some establishments promoting them as a way to overcome the heat. However, experts have warned about the need for caution when sweating in hot weather, a growing number of studies are assessing whether heat training can help people prepare for heatwaves.
With parts of the UK experiencing their fourth heatwave of the year, the UK Health Security Agency (UKHSA) has issued heat health alerts across much of England. The alerts follow an unprecedented summer, with Western Europe experiencing its hottest June on record.
Why It Matters: The Impact of Heatwaves on Public Health
Heatwaves can have devastating consequences for public health, especially for vulnerable populations such as the elderly, children, and people with pre-existing medical conditions. Excessive heat can lead to heart disease, strokes, heatstroke, and even death.
Therefore, finding ways to prepare for and adapt to heatwaves is crucial. Using saunas as a form of heat training may be a promising strategy, as it can help improve the body's ability to regulate temperature and cope with heat stress.
The Mechanism Behind Heat Training: How Sweat Baths Work
When we expose ourselves to high temperatures, our body responds with a series of mechanisms to maintain homeostasis. This includes sweating, dilation of blood vessels, and the production of hormones that help regulate body temperature.
Heat training, such as using saunas, can help improve these mechanisms, making our body more efficient at coping with heat stress. This can be especially beneficial for people who live in areas prone to heatwaves or work in hot environments.
Bigger Picture: Heatwaves and Climate Change
Heatwaves are becoming increasingly common and intense due to climate change. As the global temperature continues to rise, it's likely that we'll see more extreme heat events in the future.
Therefore, it's essential that we find ways to adapt to and prepare for these events. Using saunas as a form of heat training may be a useful strategy, but it's also important to address the underlying causes of climate change and work to reduce greenhouse gas emissions.
What's Next: Implications and Open Questions
As studies on heat training and sauna use continue, it's likely that we'll see more evidence on the effectiveness of this approach. However, it's also important to consider the limitations and potential risks of heat training, especially for vulnerable populations.
Furthermore, it's crucial that we address the underlying causes of climate change and work to reduce greenhouse gas emissions. This may include strategies such as transitioning to renewable energy sources, improving energy efficiency, and promoting sustainable practices.
Source / Reference
This article was based on an original report published in The Guardian Environment, available at: https://www.theguardian.com/society/2026/jul/29/repeated-use-of-saunas-could-help-people-cope-better-in-heatwaves-scientists-say