Hydrogen-rich water improves sleep consolidation and enhances forebrain neuronal activation in mice
Vincent SM et al. · Sleep Adv. 2024;5(1):zpad057.
Study at a glance
Preclinical
Adult C57BL/6J mice under baseline and acute sleep-deprivation conditions
Ad libitum hydrogen-rich water for 7 days, replaced every 2 hours during the active phase · 0.7–1.4 mM reported in the abstract; approximately 1–2 ppm maintained during the active phase.
7 days per water condition, followed by 24-hour baseline recording, 6-hour sleep deprivation and 18-hour recovery
H₂ water was associated with about 30% fewer brief arousals at baseline and more NREM and REM sleep after deprivation; several other fragmentation measures were not significantly different. Histology showed region-dependent cFos differences.
Mouse study, only 10 animals in the crossover sleep recording, multiple sleep features and separate histology cohorts. Tablets were supplied by HRW Natural Health Products; one author held a related patent and another disclosed consulting and speaking fees.
What kind of evidence is this?
Preclinical
Pseudo-randomized within-animal sleep experiment plus separate controlled histology experiment
Sleep and mood research
H₂-rich water
Information not yet classified
Some editorial classification fields are still pending. The source-reported outcomes and result are shown below; Hydrogenology does not infer a positive or negative signal from prose automatically.
Methods
Adult C57BL/6J mice under baseline and acute sleep-deprivation conditions
10 mice in the EEG/EMG crossover experiment; 33 additional mice in four histology groups
7 days per water condition, followed by 24-hour baseline recording, 6-hour sleep deprivation and 18-hour recovery
Ad libitum hydrogen-rich water for 7 days, replaced every 2 hours during the active phase
H₂ dissolved in water — H₂ only, not Brown’s gas.
0.7–1.4 mM reported in the abstract; approximately 1–2 ppm maintained during the active phase.
Standard deionized water with matched cage disturbance; order counterbalanced in the polysomnography experiment
Outcomes and reported result
EEG/EMG sleep architecture, arousals, sleep latency, recovery NREM/REM sleep and cFos-positive cells in sleep-related brain regions
H₂ water was associated with about 30% fewer brief arousals at baseline and more NREM and REM sleep after deprivation; several other fragmentation measures were not significantly different. Histology showed region-dependent cFos differences.
Full methods, results, funding and disclosures checked in the open-access article; independent appraisal remains incomplete.
A reported association, difference or mechanism is not automatically a clinical benefit.
Limitations and applicability
Mouse study, only 10 animals in the crossover sleep recording, multiple sleep features and separate histology cohorts. Tablets were supplied by HRW Natural Health Products; one author held a related patent and another disclosed consulting and speaking fees.
Laboratory sleep and sleep-deprivation outcomes in mice; it does not establish treatment benefit for human insomnia.
No single-study GRADE certainty rating is assigned. Read how records and evidence assessments are prepared.
Sources and record status
PMID: 38264142 · DOI: 10.1093/sleepadvances/zpad057
Open-access full text is available through PMC and Oxford Academic.
Open-access PMC and publisher full texts plus PubMed record.
10 August 2026
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