To investigate the efficacy of probiotic sup- plementation in improving sleep quality in a general population
To determine whether immune, metabolic, and stress-related biomarkers exhibited signifi- cant differences in individuals with poor sleep quality.
IMPLEMENTATION The study followed a randomized, double-blind, place- bo-controlled, parallel-group design, adhering to the high- est research standards.
Over an 8-week intervention period, otherwise healthy sub- jects with specific sleep-related indexes were recruited to participate in the trial.
Subjects were carefully selected through a multi-faceted re- cruitment process, including database screening, outreach to General Practitioners’ offices, social media platforms, and local newspaper adverts.
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