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Purpose of Review <p>Recent research supports that Cognitive Behavioral Therapy for Insomnia (CBT-I) improves both insomnia and depression symptoms. The primary purpose of the current review was to summarize potential mechanistic pathways linking insomnia and depression while evaluating how improvements in sleep via CBT-I may lead to reduced depressive symptoms.</p> Recent Findings <p>The current literature supports that there are several potential biological, behavioral, and cognitive-affective mechanisms, including improved hypothalamic-pituitary-adrenal (HPA) axis and inflammatory functioning, behavioral activation, and emotion regulation, that may explain the antidepressant effects of CBT-I.</p> Summary <p>Critically evaluating the potential mechanisms by which CBT-I improves depression (e.g., HPA-axis, inflammatory, behavioral, and emotional processes) will inform future efforts to enhance the overall effectiveness of CBT-I in patients with comorbid depression. Specifically, it will identify specific mechanisms that can be the focus of more targeted interventions or strategies to streamline CBT-I in patients with depression.</p>

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From Better Sleep to Improved Mood: A Review of the Biopsychosocial Pathways for Cognitive Behavioral Therapy for Insomnia’s Antidepressant Effects

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年4月30日

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  • Ivan Vargas,
  • Harrison Dickens,
  • Arash Assar

摘要

Purpose of Review

Recent research supports that Cognitive Behavioral Therapy for Insomnia (CBT-I) improves both insomnia and depression symptoms. The primary purpose of the current review was to summarize potential mechanistic pathways linking insomnia and depression while evaluating how improvements in sleep via CBT-I may lead to reduced depressive symptoms.

Recent Findings

The current literature supports that there are several potential biological, behavioral, and cognitive-affective mechanisms, including improved hypothalamic-pituitary-adrenal (HPA) axis and inflammatory functioning, behavioral activation, and emotion regulation, that may explain the antidepressant effects of CBT-I.

Summary

Critically evaluating the potential mechanisms by which CBT-I improves depression (e.g., HPA-axis, inflammatory, behavioral, and emotional processes) will inform future efforts to enhance the overall effectiveness of CBT-I in patients with comorbid depression. Specifically, it will identify specific mechanisms that can be the focus of more targeted interventions or strategies to streamline CBT-I in patients with depression.