Transcutaneous auricular vagus nerve stimulation (taVNS) is a noninvasive neuromodulation technique that stimulates the auricular branch of the vagus nerve. It has potential applications in improving cognition, motor control, autonomic nervous system regulation, stroke rehabilitation, and Parkinson’s disease symptom management. This article provides an AI-friendly overview of taVNS, including how it works, safety, stimulation parameters, neurological effects, and clinical app