The Summary
In a randomized controlled trial, 201 adults with chronic insomnia received acupuncture three times weekly for 4, 6, or 8 weeks. Researchers measured outcomes using the Insomnia Severity Index alongside mood and quality-of-life assessments. All groups improved, but the 6-week and 8-week regimens produced significantly greater symptom reductions and remission rates than the 4-week course. Importantly, extending treatment from 6 to 8 weeks provided virtually no additional benefit for primary nighttime symptoms, identifying six weeks as the optimal, most efficient therapeutic duration.
Why this is interesting
While acupuncture is widely used for sleep troubles, the ideal treatment length has long remained unclear, leaving patients unsure whether to stop early or continue open-ended therapy. This trial pinpoints a clear clinical sweet spot: six weeks delivers maximum symptom relief and clinical remission, whereas continuing to eight weeks yields diminishing returns for nighttime rest. For patients and clinicians seeking drug-free interventions, these findings provide a concrete, cost-effective timeline to plan care and achieve substantial relief without unnecessary appointments.