What This Means
This study examined whether adding white noise therapy to standard cognitive behavioural therapy (CBT) could help people with mild to moderate depression. Researchers looked back at records from 136 patients treated over three years, comparing three groups: those who received standard care, those who received standard care plus personalised CBT, and those who received standard care plus CBT plus white noise therapy. All groups were assessed before treatment and again after 12 weeks using a range of tests measuring depression severity, stress, sleep quality, thinking patterns, emotional coping, and hopefulness.
This research suggests that each added layer of treatment produced better results. Patients who received CBT on top of standard care improved more than those receiving standard care alone, and patients who also received white noise therapy improved the most across every measure tested. The white noise group showed greater reductions in depression symptoms, perceived stress, and sleep problems, and also showed better gains in using healthy emotion regulation strategies, reducing psychological avoidance, and maintaining hope. All differences between groups were statistically significant.
These findings matter because they suggest that white noise therapy — a relatively simple, low-cost addition — may meaningfully enhance the effects of CBT for people with depression, improving not just mood but also sleep and psychological coping skills. However, because the study was retrospective and patients were grouped by the year they were treated rather than randomly assigned, factors other than the treatments themselves could have influenced the results. Future randomised controlled trials would be needed to confirm these findings.