My Cold Exposure Protocol After 400 Days

    Day 1 I lasted 45 seconds. Day 400 it feels like coming home. Here is the data.

    By Dalton Goodyear6 min readUpdated

    Day 1: I lasted 45 seconds in a cold shower and thought I was dying.

    Day 400: I sit in 39°F water for 5 minutes and it feels like coming home.

    Here's what actually changed — backed by my own data and subjective experience, not broscience.

    What improved measurably: - Morning cortisol response: faster wake-up, more consistent energy - HRV: up 18% average over 12 months (measured via Whoop) - Skin: noticeably clearer, less inflammation - Recovery: post-workout soreness cut roughly in half

    What didn't change: - Body composition (cold exposure alone won't make you lean) - Sleep quality (marginal improvement at best) - Testosterone (despite what the podcasters claim)

    Cold exposure isn't about the cold. It's about voluntarily choosing discomfort — and discovering you can handle more than you think.

    My current protocol: - Morning: 2-3 minutes cold shower (end of regular shower) - 3x/week: 5 minutes in chest freezer at 39°F - Post-workout: cold plunge within 30 minutes

    The real benefit isn't physiological. It's psychological. Every morning, you do something hard before the world asks anything of you. That compounds.

    • cold exposure
    • cold plunge
    • cold shower
    • hrv
    • recovery
    • whoop
    • morning routine
    • discipline

    Anything here about money or results describes my own companies. It isn't typical and isn't a promise of yours. See the earnings disclaimer.

    Dalton Goodyear

    Operator, writer and speaker in Sheridan, Wyoming. Hosting short-term rentals since 2017. Licensed Wyoming real estate broker and founder of Wyo Stays.

    About Dalton

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