Bifidobacterium animalis subsp. lactis Bbm-19 ameliorates insomnia by remodeling the gut microbiota and restoring γ-aminobutyric acid and serotonin signaling.

Insomnia is associated with dysregulation of the gut-brain axis, yet microbiome-targeted interventions remain underexplored. In this study, we investigated the effects of Bifidobacterium animalis subsp. lactis Bbm-19 (Bbm-19), a strain isolated from…

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