ADHD question
Does brown noise help ADHD focus?
The short answer
Nobody knows yet. A 2024 meta-analysis looked for studies of white, pink and brown noise in ADHD and found none on brown noise. It did find that white and pink noise gave a small improvement on attention tasks in children and young adults with ADHD. Brown noise may work in a similar way, and many people like it, but that is experience, not evidence.
What the studies found
The best summary so far is a 2024 systematic review and meta-analysis from Oregon Health and Science University. It combined 13 studies with 335 participants who had ADHD or high ADHD symptoms.1
- White and pink noise helped a little. Task performance improved by a small but reliable amount.
- It made people without ADHD slightly worse. In comparison groups, the same noise hurt performance.
- No brown noise studies existed. The authors say so directly.
- The participants were children and college-age adults, doing lab tasks. Nobody has studied a 40-year-old writing a budget report.
An earlier, well-known experiment found the same pattern: background noise improved memory performance in children with ADHD and worsened it in children without.2
Why noise might help
The leading idea is that people with ADHD are, on average, under-stimulated at rest, and that a steady external sound brings arousal up to a level where focus is easier. For people who are already at that level, extra noise is just noise.2 This is a theory that fits the results. It is not settled.
What the colors mean
- White noise has equal energy at all frequencies. It sounds like static.
- Pink noise has more energy at lower frequencies. It sounds like steady rain.
- Brown noise is lower still. It sounds like a distant waterfall or strong wind.
Many people find brown noise the most comfortable for long periods because it has less hiss. That is a reasonable basis for choosing it.
How to try it sensibly
- Keep it quiet. The review notes that safe volume levels still need study. Background level is enough.
- Test it on a real task for a few sessions, then compare with silence.
- Try different colors. If brown does nothing, try pink or white, which are the ones with evidence.
- Stop if it bothers you. For some people any constant sound is irritating.
Where NoRush fits
NoRush includes brown, pink and white noise, plus rain, sea, forest, fireplace, storm and lofi. You can layer them and set each volume. We include brown noise because many people find it pleasant, not because it is proven.
Questions people ask
Is brown noise better than white noise for ADHD?
There is no evidence either way, because brown noise has not been studied in ADHD. White and pink noise have a small measured benefit in young people with ADHD.
Can noise replace ADHD medication?
No. The measured effect is small and comes from lab tasks. It is something to add, not a treatment.
Does brown noise help if I do not have ADHD?
Possibly not. In the 2024 meta-analysis, white and pink noise slightly reduced performance in people without ADHD.
Sources
- Nigg JT, Bruton A, Kozlowski MB, et al. (2024). Systematic review and meta-analysis: do white noise or pink noise help with task performance in youth with attention-deficit/hyperactivity disorder or with elevated attention problems?. Journal of the American Academy of Child and Adolescent Psychiatry, 63(8).
- Söderlund G, Sikström S, Smart A (2007). Listen to the noise: noise is beneficial for cognitive performance in ADHD. Journal of Child Psychology and Psychiatry, 48(8).