Massage Cupping bodywork is based on the practice of Chinese cupping therapy. By creating suction and negative pressure, it is said to soften tight muscles, tone attachments, loosen adhesion’s, lift connective tissue, hydrate and increase blood flow to body tissues, and drain excess fluids and toxins by opening lymphatic pathways.

http://www.cbsnews.com/stories/2004/07/12/earlyshow/health/main628788.shtml