Neuromodulation of the vagus nerve(n-NVS) has emerged as a promising therapeutic approach for various neurological and neuropsychiatric disorders, including tinnitus, migraine, and cluster headache. This study deepens on bibliography published in some prestigious medical magazines. Across the three systematic reviews, n-NVS techniques targeting the vagus nerve exhibit promising results for tinnitus, migraine, and cluster headache, offer improvements in symptom severity, quality of life, patient satisfaction and present an alternative for individuals who do not respond to conventional treatments or experienced intolerable side effects. However, it is crucial to acknowledge that the field of non-invasive neuromodulation is still evolving, and more research is needed to establish standardized protocols, optimize treatment parameters, and assess long-term effects. Additionally, issues related to patient selection, placebo effects, and variations in methodology must be considered in the interpretation of the results. In conclusion, the three systematic reviews presented in this abstract collectively support the potential of n-VNS as a valuable therapeutic approach for tinnitus, migraine, and cluster headache. These findings underscore the need for further research and RCT’s to refine and expand the use of these techniques, potentially offering a brighter future for those suffering from these debilitating conditions.