Revisited: Saunas and cold plunges, where does the evidence stand?
Summary
Hosts Madeleine Finlay and Ian explore the science behind saunas and cold water immersion with Dr. Heather Massey. They discuss physiological responses like vasodilation and the cold shock response, noting that while observational studies link these practices to health benefits, robust evidence remains limited. The episode also covers safety precautions, potential mental health impacts, and the lack of data on alternating hot and cold exposure.
Topics discussed
Intro and summer break announcement
The rise of sauna and cold plunge trends
Physiological effects of sauna heat
The cold shock response and adrenaline
Scientific evidence for sauna health benefits
Cold water immersion and immune system claims
Contrast therapy and safety precautions
Psychological benefits and placebo effect
Frequency of use and acclimatization
Safety tips for beginners and conclusion
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