Brown noise for ADHD: what we know

Why noise might help some people with ADHD

The leading idea comes from the moderate brain arousal model, proposed by Swedish researchers in 2007. It suggests that people with ADHD may be under-aroused in some brain systems, and that adding a moderate amount of external stimulation, such as background noise, can bring arousal closer to the level where attention works best. The same noise could push someone who is already well aroused past that level, making their performance worse.

That second half matters: the model predicts noise helps some people and hinders others, which is what several studies have found.

What the studies found

A 2007 study found that white noise improved memory performance in children with attention problems while worsening it in children without. A 2010 study of inattentive schoolchildren found a similar pattern, and a 2016 study reported benefits from white noise on some neuropsychological measures.

The strongest summary so far is a 2024 meta-analysis in the *Journal of the American Academy of Child & Adolescent Psychiatry*. It combined 13 studies of white and pink noise in young people with ADHD or elevated attention problems and found:

• A small benefit on attention and task performance for the ADHD groups (an effect size of about 0.25).
• A small negative effect for comparison groups without attention problems.
• No eligible studies of brown noise. The research that exists is on white and pink noise.
• Moderate certainty, with the authors calling the findings encouraging but not yet enough for clinical recommendations.

What this means for brown noise

Brown noise is a close relative of white and pink noise. It has the same random structure, with more energy in the low frequencies, so it is plausible that it works in a similar way. But plausible is not proven: no controlled study included in that meta-analysis tested it, and the viral claims run well ahead of the evidence.

Most research has also been done in children and teenagers in lab tasks. Adults with ADHD report finding brown noise helpful, and personal experience is a reasonable guide for something low-risk, but it is not the same as evidence that it improves day-to-day functioning.

How to try it sensibly

• Treat it as an experiment. Try a week with noise and a week without on similar tasks, and note how focused you felt and how much you got done.
• Compare colours. Since the research is on white and pink noise, try pink noise and white noise as well as brown noise; the guide to noise colours explains the differences.
• Keep the volume low. Moderate stimulation is the point; louder isn’t better, and long exposure to loud sound harms hearing.
• Pair it with structure. Noise works best alongside other supports such as short, timed work blocks. A 25 minute timer is a good place to start.
• Stop if it makes things worse. The research shows noise can hurt performance for some people.

Background noise is a low-cost, low-risk tool that may help some people a little. It isn’t a treatment for ADHD, and it doesn’t replace assessment, therapy, coaching or medication where those are appropriate.