PC 6

I have an indented line down my toungue I have heard that is a sign of a deficiency. Anyone know anything about this?

Submitted By: piCan anyone tell me what acupuncture points would be good to use on someone who is experiencing an overall feeling of numbness or lack of sensation of the body during a massage due to emotional stress? Thanks!

If I wanted to open the yin wei meridian, I would needle pc6, the rest of the points I intend to use then close with sp4. To open the chong, the same thing but reversed. I have some ion cords, using the example of the yin wei, would I put the black clip on pc 6 or the red? Thanks a lot.