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    Living in Arizona, we have built-in 110-115F temperatures in August and nearly there in July and September sometimes. I know it will be easy to experience heat stress during those months, as most of us hide from the heat then. Temperatures stay very high overnight as well in those months.

    However, sauna’s are few and far between because of our location. May I reasonably assume that a hot tub or spa can provide my heat stress in cooler months? Thanks for your thoughts. I’m curious in that one’s head is also heated in a sauna…

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      Hi Dr Patrick

      Following reads goofy to me but I am curious. Sauna is going to become a part of my fitness routine but is the heat harmful to my electronic devises? Should I put away my wristwatch and cell phone before going into sauna? Would it interfere with medical devices - insulin pump or pacemaker?

      Thanks Gayle

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        Hi Dr. Patrick,

        Curious if the hormetic benefits of dry sauna use can be replicated via intense cardio/plyometrics while wearing layers in an otherwise room temperature environment? And given that evidence indicates that benefits from heat stress are to some degree dose dependent, would total sweat (as a percentage of bodyweight) be a reasonable metric to measure the effectiveness of a workout?

        I ask b/c I’ve been training Brazilian Jiu-Jitsu in a gi (thick cotton kimono) for some time now. Though my gym hovers around 70 degree, by the end of a two hour session I certainly feel like I’ve replicated a sauna session.

        Thanks! Gray

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          I am curious about the fact that sauna use increases growth hormone. Would that mean someone who is trying to avoid a reoccurrence of Leiomyosarcoma should avoid saunas?

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            While some of these changes in the hormonal milieu are interesting and fun to talk about… it is probably not a good idea to extrapolate out too far, especially when we’re talking about medical conditions like cancer.

            That said, there is actually evidence out that that is suggestive that in the case of some cancers heat stress actually promotes apoptosis and, for that reason, may eventually be used as an adjunct to chemotherapy… but probably only under close clinical monitoring.

            This is not meant to be medical advice! Please consult your oncologist. If you have a potentially life threatening disease, it is absolutely not worth the potential risk to be experimenting based off of some random musings on the internet.

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            What a great interview! Thank you. If saunas are not available, would hot Jacuzzi do the same thing? Thanks again.—Dr. Allen Darbonne

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              Any thoughts Dr. Partrick on the pactrice of Bikram hot yoga? The sessions are often 90 minutes long at 95–108 °F.