Does Brown Noise Help ADHD? What the Research Shows
Quick answer
Nobody knows for sure yet, because brown noise hasn't been tested for ADHD. The closest evidence is a 2024 meta-analysis of 13 studies, which found that white and pink noise gave a small boost on attention tasks for people with ADHD or high ADHD symptoms, but slightly worsened performance for people without ADHD. Brown noise may work in a similar way, and it's low risk at a comfortable volume, but it isn't a treatment for ADHD.
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Brown noise has become something of an ADHD staple online, with plenty of people saying the low, steady rumble finally quiets their thoughts enough to work. Those reports are worth taking seriously, but they're running well ahead of the research. Here's what has actually been studied, and what that means if you want to try it.
What is brown noise?
Brown noise is a type of random noise with most of its energy in the low frequencies, so it sounds deep and soft, like a strong wind, a waterfall at a distance, or the rumble inside a plane. White noise spreads energy evenly across frequencies and sounds brighter and hissier, while pink noise sits in between. Our guide to noise colors compares them side by side.
What does the research say about noise and ADHD?
The best summary so far is a 2024 systematic review and meta-analysis by Joel Nigg and colleagues, published in the Journal of the American Academy of Child and Adolescent Psychiatry. It pooled 13 studies with 335 children and young adults who had ADHD or high levels of ADHD symptoms. Listening to white or pink noise while doing attention tasks produced a small but statistically significant improvement in performance.
Two findings matter just as much. First, in people without ADHD, the same noise slightly worsened performance. Second, the review found no studies of brown noise at all. So the evidence is for white and pink noise, in people with ADHD symptoms, with a small effect.
Why might noise help an ADHD brain?
The leading idea is the moderate brain arousal model, developed by the researcher Göran Söderlund and colleagues. It suggests that some ADHD brains are under-aroused, and that a moderate amount of random background noise can help weak signals stand out, an effect known as stochastic resonance. The 2024 meta-analysis says its results fit with this kind of arousal theory, but don't prove it.
There are simpler reasons too. A steady sound covers sudden distractions, like a door, a conversation, or traffic, which can pull attention away. And brown noise in particular is easier on the ears than white noise for long sessions, which may be part of why people with ADHD reach for it.
What are the limits of the evidence?
- The effect is small. Noise isn't a replacement for ADHD treatment.
- The studies were short. Participants listened for minutes at a time, at varying volumes, so it's unclear what happens over a full working day or what volume works best.
- Controls were weak. The authors note that many studies lacked adequate control conditions, so the effect of simply being studied can't be ruled out.
- Brown noise is untested. Any benefit is borrowed from white and pink noise research.
How to try brown noise for focus
- Keep it quiet. You should be able to talk over it comfortably. The World Health Organization suggests keeping devices at no more than 60% of maximum volume, and that adults can safely listen at 80 decibels for up to 40 hours a week. The meta-analysis authors also warn that long exposure to even moderate volumes can harm hearing.
- Use speakers when you can, especially for children, and give your ears breaks.
- Test it fairly. Try the same kind of task with brown noise, with white or pink noise, and in silence, and notice which actually helps rather than which feels nicest.
- Pair it with structure. Noise works best alongside a clear task and a time limit. A timed work block on our Focus page combines both.
You can try brown, white, and pink noise for free on our Sounds page, mixing them with other sounds and setting the volume of each. For more on noise and concentration generally, see whether background noise helps you study, and for the brainwave side of the same question, whether brainwave entrainment can help ADHD.
Brown noise isn't an ADHD treatment
Noise is at best a small, low-risk aid for focus. If you think you or your child might have ADHD, or ADHD symptoms are getting in the way of work, school, or relationships, talk to a GP or doctor about assessment and treatment options.