Is Misophonia Genetic?

If you have misophonia, you have probably noticed it in someone else in your family. A parent who always seemed too bothered by noise at the table. A sibling who cannot tolerate certain sounds. The clustering is real.. and now, research is beginning to explain why.

Misophonia appears to have a meaningful genetic component. The evidence comes from multiple directions: family patterns, twin studies, and now genome-wide association research that has identified a specific gene variant.

In a genome-wide association study (GWAS) using data from 23andMe participants, researchers identified a significant association between misophonia and a variant called rs2937573, located near the TENM2 gene.

TENM2 (Teneurin Transmembrane Protein 2) plays a role in neural development, brain connectivity, and the formation of synaptic connections. It is particularly active during early brain development.. the same window in which misophonia most commonly emerges (ages 8-13).

The finding does not mean that TENM2 "causes" misophonia. Genes rarely work that way. What it suggests is that variations in this gene may influence how certain neural pathways develop, potentially predisposing some people to the atypical auditory-emotional connectivity that characterises the condition.

The same GWAS research examined genetic correlations between misophonia and other conditions. The findings are clinically significant:

• Tinnitus: Significant positive correlation, suggesting overlapping neural mechanisms
• PTSD: Genetic correlation, consistent with shared hypervigilance pathways
• Depression: Positive correlation, supporting the observed co-occurrence
• Anxiety disorders: Correlation, consistent with overlapping autonomic dysregulation

"The genetic architecture of misophonia suggests it is not a purely sensory disorder, nor a purely psychiatric one. It occupies a space between the two." — Research summary, 2023 GWAS paper

These correlations do not mean misophonia is the same as PTSD or depression. They mean the conditions share some underlying genetic risk factors. Which may help explain why people with misophonia often experience co-occurring anxiety, and why treatments targeting the autonomic nervous system show promise across all of them.

Long before genetic research began, clinicians noticed that misophonia clusters in families. Studies have documented:

• First-degree relatives (parents, siblings) of people with misophonia have elevated rates of the condition
• Family members often share similar trigger categories (chewing vs. breathing vs. sniffling) even when raised separately
• Some pedigrees suggest an autosomal dominant inheritance pattern, meaning one copy of the relevant variant may be sufficient to express the trait

The clustering of misophonia in families raises an important question: is it genetics, or is it simply that children learn from a parent who models extreme distress at certain sounds?

Both factors likely play a role. Twin studies (including data from the UK Biobank) suggest that genetic factors account for a meaningful portion of misophonia heritability, even after controlling for shared household environment.

But shared environment matters too. A child who grows up watching a parent become distressed at sounds may develop heightened vigilance toward those same sounds. The neural pathways for salience detection are shaped by both genes and experience.

Genetics is not destiny. Many people with the TENM2 variant may never develop clinically significant misophonia. Many people with severe misophonia may not carry the variant. Genes set a disposition; experience, environment, and nervous system history write the story.

What the genetic research does, powerfully and importantly, is confirm that misophonia is not a learned preference or a cultural habit or a choice. It has a biological basis. It runs in families because it has a heritable component.

Understanding the genetic basis of misophonia has practical implications:

• It validates the condition for skeptical healthcare providers and family members
• It opens pathways for targeted pharmacological research
• It may eventually allow for early identification in at-risk children
• It places misophonia clearly within the domain of neurodevelopmental conditions

The research is still early. But the direction is clear: misophonia is, at least in part, something you were born toward. And that is not weakness. That is biology.