One of the longest nerves in the body is known as the vagus nerve (VN). The VN is the 10th pair of cranial nerves that originates at the brain stem in the medulla oblongata. This nerve is part of the parasympathetic nervous system, which is a part of the ANS. Research suggests ear acupuncture can activate the VN.
Lynn Eder, MFA
Lynn Eder is a professional writer and editor for the acupuncture profession. She was associate editor for The American Acupuncturist from 2009-13 and managing editor for Meridians: The Journal of Acupuncture and Oriental Medicine from 2014-2018.