Bothered by Sounds That Others Do Not Mind? You Might Have Hyperacusis

Just as Donguibogam describes the ear as a mirror of the kidney and liver, modern medicine views hyperacusis not simply as an ear issue, but as a malfunction in the brain's sound processing system. When we hear sound, sound energy travels through the ear, is converted into electrical signals in the cochlea, and travels through the brainstem to the auditory cortex. Here, the brain interprets the sound and determines how important or threatening it is. Hyperacusis refers to a state in which the brain's gain control mechanism for specific sounds becomes hyperactive in this complex process. It resembles turning up a radio's volume so high that even slight static sounds like a roar. This can be explained mainly by two mechanisms. First, an issue in central auditory processing. When the brain's capacity to filter and regulate sound declines, it excessively amplifies even ordinary sounds. This can be related to neural network hyperactivation in the cerebral cortex or auditory pathway disinhibition. Often, the brain's limbic system, particularly the amygdala and hippocampus responsible for emotional responses, becomes hyperactivated, reinforcing negative emotional reactions to sounds. That is why sounds can easily trigger anxiety, restlessness, and fear. Second, autonomic nervous system imbalance can worsen hyperacusis. Ongoing stress or chronic fatigue overactivates the body's sympathetic nerve, placing the body on constant alert. Under these conditions, the brain perceives even the slightest sounds as threatening signals and reacts hypersensitively. It is like being in combat, sharpening every sense in anticipation of an attack at any moment. This disruption of the autonomic nervous system impacts the auditory system, lowering the perception threshold for sound and causing pain or discomfort. Because of this, it is common for hyperacusis patients to have comorbid chronic pain conditions such as migraine, temporomandibular joint disorder, and fibromyalgia, or anxiety disorder and depression. This indicates that auditory hypersensitivity reactions are not merely ear problems, but reflect weakened regulation across the entire brain and nervous system. Ultimately, hyperacusis can be called a protective mechanism malfunction, in which the brain overreacts in an effort to protect us. As the brain struggles to process auditory information and regulate emotion, it brings great discomfort to daily life. Understanding this interaction between body, mind, and brain is the first step toward overcoming hyperacusis.