Scientists Uncover How Serotonin May Trigger Tinnitus

Researchers identified a serotonin-sensitive brain circuit tied to the auditory system that can drive tinnitus-like behavior in mice.

When the circuit was activated, tinnitus-like responses increased; when it was switched off, the responses dropped.

The findings may help explain why some people notice worse ringing in the ears after taking serotonin-boosting antidepressants like SSRIs.

The work could guide treatments that protect mental health benefits while reducing hearing-related side effects.