Sleep deprivation changed gut microbes more clearly in rodents
A review combining human and animal research found changes in gut microbial diversity after sleep deprivation. Human findings remained uncertain, limiting conclusions about what these measurements mean for people.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
Across research in humans and rodents, sleep deprivation was associated with changes in the community of gut microbes. Reduced within-sample diversity was clearer in rodents; human results did not reach statistical significance. The review therefore supports differences in microbial measurements more directly than conclusions about health consequences for people who lose sleep.
Human studies had small samples, while sleep-deprivation methods and gut measurements varied across the research. The abstract does not report exposure duration or provide clinical outcomes that would establish whether the microbial changes affected health.
What microbial diversity means
Within-sample diversity describes the variety and distribution of microbes in a sample. The review found lower diversity measures and a changed ratio between bacterial groups, with clearer statistical evidence for these differences in rodents.
Why human results matter separately
The human studies showed trends that were not statistically significant. This leaves the direction and size of human effects uncertain; it does not establish that sleep deprivation leaves the gut unchanged or reproduces the rodent findings.
The original publication
Sleep Deprivation Alters Gut Microbiome Diversity and Taxonomy: A Systematic Review and Meta-Analysis of Human and Rodent Studies.
Supasitdikul T, Mazariegos JRR, Nhat NN et al.
J Sleep Res · 2026
- PubMed ID
- 40562421
- Record checked
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