Misophonia: when certain sounds become unbearable

What is misophonia? Literally, the "hatred of sound." This term, which appeared in the early 2000s, refers to a condition characterized by an abnormally intense reaction to certain specific noises. Not a passing annoyance. A deep aversion, often uncontrollable.

Contrary to what those around them often imagine, a person with misophonia does not choose to react this way. The condition is not a question of character or ill will. A group of experts published a consensus definition of it in 2022[1], and research is exploring atypical brain connections that would turn certain sounds into alarm signals[2].

Misophonia also differs from simple auditory sensitivity. What defines it is selectivity: only certain sounds trigger the reaction, and that reaction goes far beyond discomfort. Disgust, anger, a feeling of panic... the emotional responses are out of proportion to the objective sound stimulus.

The condition is still poorly understood, but research is actively studying it. Putting it into words, giving it a name, is already a decisive step for the people who suffer from it.

Not all noises are equal for a person with misophonia. Trigger sounds generally fall into four broad categories:

• Oro-facial noises: chewing, swallowing, lip smacking, gum popping. These are the most frequently cited.
• Repetitive noises: pen clicking, fingers tapping on a keyboard or a table, foot tapping.
• Nasal and guttural noises: sniffing, throat clearing, sighing.
• Specific environmental noises: rubbing of polystyrene, screeching, certain repetitive mechanical sounds.

One counterintuitive point is worth highlighting. According to accounts from people with the condition, sounds made by adults are more often the cause than those made by children or animals. What matters is not the loudness but the source and the context of the noise.

In addition, misophonia can come with a visual aversion: seeing someone chew, even without hearing it, is sometimes enough to trigger the reaction. The condition therefore goes beyond the auditory register alone.

Research offers one explanation. A 2021 study describes stronger connectivity linking the auditory cortex to the orofacial motor cortex, the area that controls movements of the face, mouth and throat, in people with misophonia[2]. This work still needs to be confirmed.

It makes sense when you think about it: most trigger sounds involve precisely these movements. When a person with misophonia hears someone chewing, their brain would activate the corresponding motor area, as if they were performing the movement themselves. A kind of involuntary neurological echo.

The role of the mirror neuron system

This mechanism would involve the mirror neuron system, which allows us to process other people's actions by simulating them mentally. In people with misophonia, this simulation would be experienced as an intrusion, which could trigger a fight-or-flight response.

Other regions involved in emotions, such as the amygdala, are also being studied.

This work does not yet make it possible to decide between a neurological origin, a psychological one, or both. It does, in any case, show that the reaction is not simply a lack of willpower.

Misophonic reactions go far beyond simple annoyance and affect several areas of life. Understanding their extent helps gauge the real weight of the condition.

Emotional and physical reactions

Faced with a trigger sound, the reaction is immediate and often uncontrollable. People with misophonia report intense irritability, anxiety, disgust and bursts of anger. Some cry, shout, or feel nauseous.

Physically, the fight-or-flight response kicks in: a faster heart rate, muscle tension, a feeling of heat. The sense of losing control worsens the emotional state. The person knows their reaction is out of proportion. They cannot help it.

Social and professional impact

Daily life becomes a minefield. Family meals, public transport, the open-plan office: these are all risky situations that many people with misophonia end up avoiding systematically.

This gradual avoidance leads to isolation. Personal relationships deteriorate, often because those around them do not understand the reaction and see it as an exaggeration. Shame and guilt set in. Professionally, concentration becomes difficult as soon as a colleague taps a pen or eats at their desk. The condition affects performance, sometimes to the point of making certain work environments unbearable.

Confusion is common. Both conditions involve tolerance to sounds, but their mechanisms and manifestations are distinct.

• Auditory hypersensitivity (hyperacusis): a low tolerance threshold for all loud sounds. The discomfort is above all physical (pain, a feeling of overload). Any intense noise can trigger distress, whatever its source.
• Misophonia: a reaction targeted at specific sounds, often of moderate intensity. The response is emotional: anger, disgust, anxiety. The volume of the sound is not the deciding factor.

A person with hyperacusis suffers in a concert hall or on a noisy street. A person with misophonia may cope with these environments without difficulty, but will be overwhelmed by the sound of a neighbor chewing at the next table in a quiet restaurant.

The two conditions can coexist in the same person, which complicates diagnosis. And if you tell yourself "I can't stand other people's noise anymore," that is not enough to draw a conclusion: fatigue, stress or an anxiety disorder can also lower your tolerance.

People sometimes speak of a "noise phobia." The term corresponds more closely to phonophobia, a fear of loud or sudden sounds, whereas misophonia is expressed mainly through anger and disgust.

More people than you might think. A study published in PLOS ONE estimates that 18% of the British population has misophonia symptoms causing significant distress[3].

Yet underdiagnosis is widespread. In that same study, only 13.6% of participants knew the term, and 2.3% described themselves as misophonic[3]. In other words, many people who are affected do not have the words to name what they experience.

Putting a name to what you are going through changes everything. Discovering that there is a word for it, and that you are not alone, can already bring relief.

The condition often appears in adolescence, sometimes as early as childhood. In this study, the frequency did not differ significantly between men and women[3]. Obtaining a formal diagnosis remains difficult, but it is a decisive step toward breaking out of isolation and accessing suitable support.

What solutions are there for living with misophonia?

No medication specifically treats misophonia. Several approaches aim to reduce the intensity of reactions and the space they take up in your life.

Cognitive behavioral therapy

CBT is the best-studied approach. In the first randomized trial, 37% of patients improved markedly, compared with 0% on the waiting list[4]. The work focuses on the thoughts associated with the sound ("they're doing it on purpose"), on attention, which is often captured by the noise, and on the avoidance behaviors that maintain the disorder.

In this setting, virtual reality exposure therapy can help the practitioner work on social avoidance. With C2Care, the practitioner controls immersive environments in real time and adapts the exposure to each patient. None of the studies cited here concerns this use in misophonia: it is a tool in support of therapy, not a treatment.

Other approaches, less studied

Counter-conditioning gradually pairs the trigger sound with a pleasant stimulus, at low volume at first. The goal is not to enjoy the noise, but to tolerate it without being overwhelmed. This work should be calibrated with a professional.

In everyday life

Earplugs, music or background noise reduce the impact in difficult situations. You can also inform those close to you and prepare for high-risk moments, such as mealtimes. These aids bring relief in the moment, but using them all the time can also maintain avoidance: talk about it with your therapist.

Key takeaways on misophonia

Misophonia is an intense, involuntary reaction to certain sounds, generally made by other people. It can weigh heavily on those affected, even though few people know the word[3]. Its causes are still being studied. CBT is the best-studied approach[4]. If these reactions limit your meals, your work or your relationships, a psychologist trained in CBT is a good first person to contact.