1.35 Billion People at Risk of Hearing Loss — And People With ADHD Are Being Hit the Hardest

What Is Causing Increase Hearing Sensitivity in the ADHD community?

Marcus Trent  
May 11, 2026 · 13 min read

In 2019, the World Health Organisation and the International Telecommunication Union released a joint report that should have generated more headlines than it did. Their finding: nearly 50% of people aged 12 to 35 — approximately 1.1 billion young people worldwide — were at risk of hearing loss due to unsafe personal audio device use.

Three years later, a systematic review published in BMJ Global Health revised that number upward. The figure reached 1.35 billion. More than one in every eight people alive on the planet. Young people, primarily. The generation that grew up with earphones as a permanent fixture of daily life.

The global response to these findings has been, to put it politely, modest. Some countries have implemented maximum volume limits on consumer devices. The WHO issued guidelines that most people have never heard of. The earphone industry continued largely unaffected.

What the public conversation has almost entirely missed is that within this already alarming global picture, one particular group faces a risk that is substantially higher than average — and that the behaviours driving that elevated risk are not optional lifestyle choices. They are neurological necessities.

That group is people with ADHD.

What Makes Personal Audio Dangerous

Noise-induced hearing loss is the most preventable form of hearing damage, and it operates through a mechanism that is well understood. Hair cells in the cochlea — the spiral structure in the inner ear that converts sound waves into nerve signals — are damaged by sustained exposure to loud sound. Unlike the cells in many other parts of the body, cochlear hair cells in humans do not regenerate. Once they're gone, they're gone.

The damage accumulates gradually, which is exactly what makes it so insidious. There's no dramatic moment of loss. You don't go deaf from a single loud concert or a single long flight with headphones. The damage accretes over months and years, most of it happening below the threshold of noticeable change. By the time someone notices that conversations are harder to follow in noisy environments, or that they're asking people to repeat themselves more than they used to, a significant amount of irreversible damage has typically already occurred.

The BMJ Global Health systematic review found that 50% of teenagers and young adults listen to personal audio devices at unsafe levels. The WHO defines unsafe as above 85 decibels — roughly the volume of heavy traffic or a loud restaurant — sustained over an eight-hour period. Listening at higher volumes reduces the safe exposure time proportionally. At 94 dB, which is a common listening level when earphones are used in moderately noisy environments, four minutes of exposure per day accumulates to the weekly safe dose.

The same review found that 40% of young people are regularly exposed to dangerous noise levels at entertainment venues. The combination of environmental noise at events and personal audio device use between events creates a cumulative exposure that the WHO considers a public health crisis in the making.

The ADHD Usage Pattern

The 1.35 billion figure is derived from the average usage patterns of the general young adult population. But people with ADHD are not average users.

Research consistently shows that people with ADHD use personal audio devices for significantly longer durations than neurotypical peers. This isn't a preference or a habit — it's a functional response to neurological need. As we've covered in previous articles, music performs genuine neurochemical regulation work for ADHD brains. It raises dopamine in the prefrontal cortex toward functional levels. It provides sensory filtering in environments that are otherwise overwhelming. It is, for many people with ADHD, the difference between being able to function in the world and not being able to.

A neurotypical person might put earphones in for a commute. Someone with ADHD might put them in from the moment they leave the house in the morning until they return in the evening — because every environment they pass through during that time is one where the ambient noise is too stimulating, the sensory input too overwhelming, or the cognitive demands too high without the neurochemical support that music provides.

When you apply the safe listening guidelines to this usage pattern, the numbers become alarming. If the average young person exceeds safe listening levels 50% of the time — as the BMJ data suggests — and a person with ADHD is using their earphones for three times as many hours per day, the cumulative damage risk is not simply three times higher. Volume and duration interact. More hours at the same volume means more total exposure. More hours in noisy environments means higher volumes chosen to compensate for background noise, compounding the damage per hour.

The Volume Trap

There is a specific pattern of behaviour that dramatically amplifies hearing risk for ADHD earphone users, and it's almost universal: turning the volume up to compensate for background noise.

When you use earphones in a noisy environment — on the tube, in an open-plan office, in a coffee shop — the background noise competes with your audio. The natural response is to turn the volume up until your music or podcast can be heard clearly over the ambient noise. This is rational behaviour. It works, in the sense that you can hear what you want to hear. But it means you're now listening at a combined level that includes both the background noise and the added volume of your earphones, and your ears are exposed to both simultaneously.

For neurotypical users, this happens sometimes — during commutes, occasionally at work. For people with ADHD, who are using earphones specifically to manage environments that are already noisy and overwhelming, it happens all day. The very situations that make earphones most necessary for ADHD management are the ones where safe listening volumes are hardest to maintain.

Noise-cancelling headphones were partly developed to address this problem. If you eliminate the background noise, you don't need to turn the volume up to compete with it. A 2022 peer-reviewed study confirmed that ANC headphone users do, on average, listen at lower volumes than non-ANC users in the same environments. From a pure hearing-damage perspective, that's a genuine benefit.

But as we've discussed in a separate article on auditory deprivation, ANC carries its own set of concerns — particularly for people with ADHD, who are using these devices for hours a day and who may already have compromised sensory gating. The solution to one problem may be creating another.

The Pre-Existing Vulnerability

Here's what makes the hearing risk particularly acute for people with ADHD: many of them are already starting from a more vulnerable position before they ever put earphones in.

Research suggests approximately half of people with ADHD also have some degree of auditory processing difficulty — meaning their brain's ability to sort, prioritise, and make sense of what their ears deliver is already compromised compared to neurotypical peers. For those with a history of recurrent childhood ear infections, there may also be subtle residual effects on cochlear function or auditory pathway development that don't show up on standard hearing tests but affect real-world hearing ability.

And then there's the broader sensory sensitivity picture. The largest meta-analysis ever conducted on sensory processing in ADHD — covering over 5,000 participants — found dramatically elevated sensitivity across all sensory dimensions. People with ADHD don't just feel noise more intensely. They feel everything more intensely, including the physical pressure of in-ear headphones, the vibration of bone conduction devices, and the sensation of any earphone used for extended periods in ways that may cause them to unconsciously compensate with higher volumes.

You are, in other words, a population that needs earphones more, uses them longer, faces more hostile listening environments, and starts from a position of greater auditory vulnerability. The 1.35 billion figure is a warning about average users. The warning for ADHD users specifically is proportionally more urgent.

The Cruelty of the Trade-Off

There is something genuinely cruel about the position this puts people with ADHD in. Your neurological condition makes you more sensitive to noise. Your brain requires audio stimulation to regulate its own chemistry and function at acceptable levels. Earphones are not optional for you in the way they are for most people. But the very act of using them — at the volumes and durations your condition drives you to — exposes you to a risk that could, over time, make your noise sensitivity dramatically worse.

Hearing loss doesn't just reduce your ability to hear. It typically increases sensitivity to the sounds that remain. A common experience among people with noise-induced hearing loss is that they struggle to hear speech but find certain sounds painfully loud — a condition called recruitment. For someone with ADHD who already has heightened sensory sensitivity, adding recruitment on top creates a situation that becomes very difficult to manage.

You can't hear conversations clearly. But sudden noises are physically painful. You need audio support to function, but audio at safe volumes may not be enough to mask the environmental noise that overwhelms you. The spiral is not hard to imagine.

This isn't inevitable. But it's the direction that current usage patterns, for many people with ADHD, are heading — and nobody is telling them.

What the WHO Guidelines Actually Suggest

The WHO's safe listening guidelines, updated following the 2019 report, are worth knowing. The recommended safe exposure is 80 dB averaged over a 40-hour week — roughly the volume of a normal conversation from a couple of feet away. At that level, you can listen to audio content for as many hours as you like without meaningful hearing damage risk.

Most people listen significantly above that. The recommendation to stay below 60% of maximum volume on a smartphone — a guideline that gets periodically recirculated on social media — corresponds roughly to the 80 dB threshold, though it varies depending on the device and earphones.

The WHO also issued a standard for "safe listening devices" — a certification framework that asks manufacturers to implement volume monitoring tools that alert users when they've accumulated a certain level of exposure. Apple's hearing health features in iOS are the most visible implementation of this, though the alerts are easy to dismiss and most users don't adjust their behaviour in response.

For people with ADHD specifically, the challenge is that 80 dB may not be sufficient to serve the regulatory purpose that music plays for their brain in noisy environments. The neuroscience of how bass and rhythm modulate dopamine doesn't specify what volume is required to produce the effect — but there's a reasonable argument that the physical impact of music that drives the dopaminergic response requires some threshold of intensity that's above what you'd experience in a quiet room at background listening levels.

This is an area where the research genuinely hasn't caught up with the real-world question. We know music helps ADHD brains. We know bass and rhythm are doing most of the work. We don't yet know exactly what volume level is required to produce the effect, or whether that level can be achieved at hearing-safe levels in all environments. These are questions worth asking — and worth the research community answering.

Practical Steps Worth Taking

None of this should be a reason to stop using earphones. The neurological benefits for ADHD are real and significant. But it is a reason to use them more consciously.

Pay attention to the environments you're listening in. If you're in a noisy space and reaching for more volume, that's the moment to consider whether a quieter space is accessible, or whether a different earphone type that passively reduces environmental noise might let you maintain safe levels.

Get a baseline hearing assessment now, before any damage is significant enough to notice. Audiologists can detect subtle early changes in hearing that precede any subjective awareness of loss. Knowing your baseline gives you something to compare against in future years.

Be honest with yourself about your usage patterns. If you're wearing earphones for eight-plus hours a day — which is common for ADHD adults in demanding environments — that usage level deserves the same attention you'd give to any other health behaviour that carries cumulative risk.

And if earphones are truly load-bearing for your daily function — which for many people with ADHD they genuinely are — then the type of earphones you use matters more than it does for casual users. Technology that lets you achieve the sensory and regulatory benefit you need at lower volumes is not a luxury. For your specific situation, it's a long-term investment in the auditory health that your brain is going to need for the rest of your life.

Why the Standard Advice Doesn't Fit

The standard public health message around safe listening is simple: turn it down and take breaks. It's sensible advice for average users. For people with ADHD, it runs into problems at almost every point.

Turn it down. But you're in an open-plan office where the ambient noise floor is already 65-70 dB. Turning your audio to "safe" levels means your music is being drowned out by the environment, and the regulatory function it serves — the dopamine support, the sensory filter — is lost. You can't just turn it down without losing the benefit that made you put it in in the first place.

Take breaks. But you need the earphones to function in the environment. Taking them out means exposing yourself to the exact sensory conditions that drove you to put them in. For a neurotypical person, "taking a break" from earphones means sitting in a quiet office for ten minutes. For someone with ADHD in a noisy environment, it means ten minutes of cognitively exhausting, sensory-overloading time without the one tool that was making things manageable.

The disconnect between standard hearing health advice and the lived reality of ADHD users is not a gap that's been seriously addressed by either the public health community or the earphone industry. You are left to navigate it yourself, usually without the information you'd need to do so intelligently.

The Broader Systemic Failure

The 1.35 billion figure represents a systemic failure at multiple levels. Device manufacturers have known for decades that personal audio devices can damage hearing when used at levels that consumers routinely use them. The earphone market has continued to optimise for loudness capability and audio performance without commensurate attention to the public health consequences.

Regulators have been slow. The EU's 85 dB maximum volume limit for audio devices — which can be overridden by the user with a simple confirmation — is widely acknowledged to be ineffective in changing behaviour. The WHO's voluntary safe listening device standard has seen limited uptake.

And the conversation about at-risk populations has been almost entirely absent. The discussion has been about young people in aggregate. Nobody has specifically identified people with ADHD as a population whose usage patterns place them at dramatically elevated risk. Nobody has asked whether the regulatory tools designed for average users are remotely adequate for the people who need earphones the most.

The 1.35 billion figure is already alarming. The figure for people with ADHD specifically — if anyone ever cared to calculate it with the appropriate corrections for usage duration, listening volume, environmental noise, and pre-existing auditory vulnerability — would be significantly more so.

What Good Looks Like

The end goal isn't to stop using earphones. For ADHD, that's not realistic and not desirable — the neurological benefits are real and the research supporting them is strong. The goal is to get the same benefit with less cumulative hearing damage.

That means thinking about passive noise reduction alongside or instead of active noise cancellation — physical sound dampening that reduces what reaches your ears without the auditory deprivation concerns of full ANC. It means choosing earphones that reproduce bass effectively at moderate volumes, so you're not cranking the volume to chase the low-frequency impact that's doing neurochemical work. It means being strategic about when you use earphones at higher volumes and when you don't need to.

It also means recognising that your hearing health is worth protecting with the same seriousness as any other aspect of your health. People with ADHD already carry a higher burden of sensory sensitivity and auditory processing difficulty than the general population. Adding noise-induced hearing loss to that picture, gradually, over years of necessary but unsafely dosed earphone use, is not an abstract future risk. It is the trajectory that current usage patterns are on.

Knowing that is the first step to changing it. And now you know it.

Author
Written by
Marcus Trent
Public health writer covering the intersection of technology, neuroscience, and long-term wellbeing. Based in London.