The Source — the HYDROGENYX Journal
Yann, retired engineer Marseille, 4 months sleep
Paul Fournier
— WEEKLY EDITION · TUESDAY 15 SEPTEMBER —
When a retired engineer turns his sleep into a project.
Yann B., 71, retired engineer (Eiffage Constructions, 38 years of career), Marseille 8ᵉ. Bought ELITE 9K in May 2026 on his GP's recommendation for fragmented sleep issues.
Yann's method: 3 cycles/day (morning, midday, 90 min before bed), Withings ScanWatch tracker night by night (122 nights cumulated). Excel journal with columns total duration, deep duration, nocturnal awakenings, morning RHR.
Baseline 30 nights pre-protocol (March 2026): 4.2 awakenings/night on average, deep sleep 47 min, morning RHR 68 bpm.
Measurements T+4 months (122 nights under protocol): 1.6 awakenings/night (−62%), deep sleep 71 min (+51%), morning RHR 61 bpm (−7 bpm, sign of better autonomic recovery).
Yann comments: « What has changed is that I wake up rested. Not for longer, but better. At 71 that's all I ask. »
122 nights Withings tracker · −62% Nocturnal awakenings · +51% Deep sleep
« Sleep after 65 is our best indicator of overall biological recovery. Yann proves it. »
Paul Fournier · Founder HYDROGENYX
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To go further: the science of hydrogen · the comparison · the FAQ
