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This mini-review establishes three pivotal advances in insomnia therapeutics: Firstly, it is demonstrated that microbiota-gut-brain axis (MGBA) dysregulation is mechanistically central to insomnia, directly linking gut dysbiosis to vagal, hypothalamic-pituitary-adrenal (HPA), and \u03b3-aminobutyric acid (GABA) axis dysfunction and neuroinflammation. Secondly, the present study documents the unique multitarget effects of electroacupuncture (EA), which have been shown to simultaneously normalize HPA axis activity, enrich GABA-producing microbiota, improve the vagal tone, and suppress neuroimmune activation. The aforementioned effects collectively resolve insomnia\u2019s multifactorial etiology. Thirdly, clinical evidence confirms the sustained efficacy of EA to be comparable to that of hypnotics, yet with superior safety and durability. 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