TAC1 and migraine disorder: TGVS activation causes the release of various neuropeptides in the vascular branches of the meninges, including substance P (SP), pituitary adenylate cyclase-activating polypeptide (PACP), neurokinin A, and calcitonin-gene-related peptide (CGRP)—a neuropeptide that plays a crucial role in migraine [32,33,34,35,36,37].