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Adjunctive mindfulness-based cognitive therapy improves short-term sleep quality in late-life depression

In a randomized controlled trial of 60 older adults with late-life depression, adding MBCT to treatment as usual improved subjective sleep quality (PSQI) at 8 weeks (between-group difference in change: -3.80, 95% CI -6.50 to -1.10) and increased stable sleep duration by 0.94 hours (95% CI 0.17 to 1.71) compared to TAU alone. Reduced functional connectivity between the right nucleus accumbens and left amygdala during meditation relative to rest was associated with greater increases in stable sleep duration (r=0.45, p=0.013).

2 min read•Updated Aug 28, 2026•1 RCTs•View structured evidence →
Evidence Score44/100
Human RCT★★☆☆☆
Meta-analysis☆☆☆☆☆
Mechanism★★★★★
Safety★★★★☆
Confidencelow

This article is automatically generated from the structured evidence profile behind the claim above. Scores reflect the quality and quantity of available research, not clinical advice.

Adjunctive mindfulness-based cognitive therapy improves short-term sleep quality in late-life depression The current body of evidence comprises 1 study, including 1 randomized controlled trial. EvidenceHub rates the overall confidence at 44/100 (low).

The Claim

Adjunctive mindfulness-based cognitive therapy improves short-term sleep quality in late-life depression

This conclusion is most relevant to: Older adults with late-life depression (LLD).

What the Research Shows

The conclusion draws on 1 linked study. Highlights from the cited literature:

  • ▸Decreased accumbens-amygdala connectivity is associated with sleep improvement in late-life depression following mindfulness-based cognitive therapy. (Journal of affective disorders, 2026) — In a randomized controlled trial of 60 older adults with late-life depression, adding MBCT to treatment as usual improved subjective sleep quality (PSQI) at 8 weeks (between-group difference in change: -3.80, 95% CI -6.50 to -1.10) and increased stable sleep duration by 0.94 hours (95% CI 0.17 to 1.71) compared to TAU alone. Reduced functional connectivity between the right nucleus accumbens and left amygdala during meditation relative to rest was associated with greater increases in stable sleep duration (r=0.45, p=0.013).

How It Works

The proposed biological pathway:

  • ▸MBCT training induces changes in brain functional connectivity, specifically reducing right nucleus accumbens-left amygdala connectivity during meditation relative to rest.
  • ▸This reduced connectivity may reflect decreased emotional reactivity and improved regulation of stress-related neural circuits.
  • ▸Such neural changes may facilitate better sleep regulation and increase stable sleep duration.
  • ▸Result: Greater reduction in accumbens-amygdala connectivity is associated with greater increases in stable sleep duration.

Who Might Benefit

Evidence fit by population:

  • ▸Older adults with late-life depression (LLD)

Limitations & Caveats

Important context when interpreting this evidence:

  • ▸Secondary analysis of a randomized controlled trial, not a primary outcome.
  • ▸Sleep improvement was short-term; no significant difference at 3-month follow-up.
  • ▸Neural correlates were only examined in the MBCT+TAU group, not in the TAU group, limiting causal inference.
  • ▸Sample size was relatively small (n=60).

Frequently Asked Questions

Does MBCT improve sleep in late-life depression?▼

Yes, the study found that adding MBCT to treatment as usual led to greater short-term improvement in subjective sleep quality (PSQI) and increased stable sleep duration compared to treatment as usual alone.

How long does the sleep improvement last?▼

The improvement was significant at 8 weeks (end of treatment), but the between-group difference in PSQI was not significant at 3-month follow-up, suggesting the effect may be short-term.

What brain changes are associated with sleep improvement from MBCT?▼

Reduced functional connectivity between the right nucleus accumbens and left amygdala during meditation relative to rest was associated with greater increases in stable sleep duration.

What was the sample size and design of the study?▼

The study was a randomized controlled trial with 60 participants with late-life depression, randomized to MBCT+TAU or TAU alone for 8 weeks.

References

  1. 1.Wang Q, Li H, Wang S, Lin X, Zhu X, Su S, Sun W, Sui M, Lu L, Deng J, Sun X. “Decreased accumbens-amygdala connectivity is associated with sleep improvement in late-life depression following mindfulness-based cognitive therapy..” Journal of affective disorders, 2026. PMID: 42648548 DOI: 10.1016/j.jad.2026.122433
Disclaimer: This article is auto-generated from structured research data for educational purposes only and is not medical advice. Evidence scores reflect the quality and quantity of available research, not clinical recommendations. Always consult a healthcare professional before starting any supplement or intervention.