• Bryan Johnson

    Felt like I was going to die in the sauna this morning.

    Experiment: time to reach a core body temp of 102.2°F (39°C)

    > with ice on face and neck: 38 min
    > no ice on face and neck: 33 min

    Dry sauna at 195°F

    Will graph data and share. Some unexpected things.

    How it felt 👇

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