According to the American Tinnitus Association, up to 30 million people suffer from tinnitus and, of those, 12.2 million experience tinnitus severe enough to warrant medical attention. Tinnitus is believed to result from an abnormal auditory perception reflecting dysregulation of the central (CNS) and autonomic nervous system (ANS). However, regulating the ANS has received very little research attention despite the fact that stress is correlated with exacerbation of symptoms and distress. It is believed that when the autonomic nervous system is calm, the presence of severe tinnitus will be less noticeable and individuals can shift their experience from one of severe debilitation to one of acceptance and peace. Three case studies are presented as an initial investigation into the impact heart rate variability biofeedback may have on the subjective perception of tinnitus and the accompanying distress. Further research is needed, but heart rate variability biofeedback may prove to be an effective adjunct intervention for tinnitus.

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