Heart July 5, 2020 0 comments HE 4 – LINGDAO Heart Meridian Acupuncture Point HE 4 – Chinese name: LINGDAO Location 1.5 cun proximal to the transverse wrist crease, on the radial side of the tendon of the flexor carpi ulnaris muscle. Indications Pain in the upper arm. Psychovegetative restlessness.