Behaviors1 mentions

Use Cold Exposure as a Chronic State Shifter

Cold exposure can worsen HRV immediately but improve it after ~30 minutes and for several hours afterward; useful as a chronic state shifter rather than an immediate calming tool.

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“if your recovery score is in the tanks and you walk outside and you jump in your 35 degree water... your HRV score immediately afterwards... is going to be significantly compromised... however... about 30 minutes on most people... that score will be improved for several hours afterwards.”

huberman · Dr. Andy Galpin: Maximize Recovery to Achieve Fitness & Performance Goals | Huberman Lab · Feb 15, 2023 · 2:30:07 · open ↗

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