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N=1 Data from sproutingzen.com
N=1 data from 1 participant(s). “Jay” (SproutingZen): +19 ms (+33%)
N=1 Self-Experiment Data
“Jay” (SproutingZen)
- Protocol: Contrast cold showers nightly: 5–7 min alternating 20s cold / 10s hot (~10 sets)
- Before: HRV 57 ms (Mo 1)
- After: HRV 76 ms (Mo 4)
- Change: +19 ms (+33%)
- Duration: 4 mo
- Device: Unnamed
Outcomes
- Heart Rate Variability57ms (RMSSD)
- Heart Rate Variability76ms (RMSSD)
- Heart Rate Variability19ms (RMSSD)
- Heart Rate Variability33ms (RMSSD)