Too lazy to find it, but Dr Rhonda Patrick (a longtime advocate for saunas for their health benefits) reported that hot tubs can provide the same results as saunas -- and they are much more pleasant to use.
replyNot to beat my own dead horse but at the heat stress needed to cause an adaptation there’s nothing pleasant about the experience. If it’s not causing nausea and palpitations, it’s not hot enough.
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