Tranquil?

On the side of a office building on 1st street is a large mural of a prone woman with a phantasmagoric array of images on her back. It took months to create. No, it isn't vulgar. It wordlessly advertises one of the businesses inside: "Tranquil Tattoo" When I think of people shoving needles into each other, "tranquil" is not the first word that comes to mind. Perhaps the clients are soothed with soft music, or maybe they are schnockered, or perhaps the tattoists slather them with lidocain first. Laughing gas?

Has anyone tried to correlate tattoo positions with acupuncture sites, and done follow up on client health? You got an "M" on a positive energy site for your pancreas, but the "O" landed on a negative site for your spleen, so they should cancel out, except for the occasional internal electrical discharges.