Episode
Sauna, Science, and Integrity: A Deeper Look at Heat & Health with Dr. Ashley Mason and Earric Lee | Sauna Talk 130
- Podcast
- Sauna Talk
- Published
- Apr 30, 2026
- Duration seconds
- 3651
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Summary
n this live panel from Sauna Days 2025, Glenn welcomes two of the most thoughtful voices in sauna research, Dr. Ashley Mason of UCSF and Earric Lee of the Montreal Heart Institute, for a candid conversation about the current state of sauna science, where the evidence is strong, where it is still emerging, and why integrity matters when talking about health benefits in the sauna world. This episode goes far beyond the usual wellness headlines. Ashley and Earric dig into the real responsibility that comes with promoting sauna for health, especially in a moment when many businesses lean on scientific claims to sell sauna experiences, home builds, and products. Rather than oversimplifying the message, this discussion brings nuance, humility, and rigor to the bench. Earric shares insights from two major projects: a cardiac rehabilitation study exploring whether regular sauna bathing can improve outcomes for patients with coronary artery disease, and a sweeping review of roughly 80 years of heat-therapy research, covering everything from traditional sauna and infrared sauna to hot water immersion and foot baths. One of the big takeaways: despite all the enthusiasm around sauna today, the actual number of long-term published studies is still surprisingly limited, and the field has a lot of room to grow. Ashley brings the mental health lens, drawing from her work on depression, insomnia, and body-based therapies that do not rely on drugs. She explains how heat exposure may relate to thermoregulation, serotonin pathways, and mood improvement, and describes the striking relationship between body temperature and depression. In her research, some people with depression appear to run "hot," not because of fever, but because their bodies do not cool as effectively. That opens a fasc…