The PC 6 (Pericardium 6) acupuncture point, also known as Neiguan ("Inner Pass"), is one of the most widely used points in Traditional Chinese Medicine (TCM) for its powerful effects on nausea and mental calm. Location: Situated on the inner arm, 2 cun (approx. 3 finger-widths) above the transverse wrist crease, between the palmaris longus and flexor carpi radialis tendons. INDICATIONS • Cardiac pain, palpitation, stuffy chest • Mental disorders epilepsy, insomnia, febrile diseases, irritability • Pain in the hypochondriac region, stomachache, nausea, vomiting, hiccup • Contracture and pain of the elbow and arm