Slackness of the tongue with inability to speak, hoarseness, heavy head, headache, rigidity and pain in the neck, opisthotonos, stroke with suspended animation, mania, epilepsy, hysteria, epistaxis, double tongue, vomiting, schizophrenia, hysteria, incomplete brain development, cerebral palsy, etc.

In the nape of the neck, directly above the posterior hairline by 0.5 cun, below the first cervical vertebra.

Step 1: Sit upright and lean over a desk with the head lowered, or lie prone.
Step 2: From the midpoint of the posterior hairline, move straight up by half the width of the thumb (the transverse diameter at the interphalangeal joint of the thumb is 1 cun), and the spot where there is a sore and distended sensation upon pressure is the location of this acupoint.