Cupping dates back to 3000BC and is an ancient medical practice used by the Chinese, Hindu, and Egyptians. Vacuum cupping is a dry cupping that makes use of plastic, silicone, or glass cups with a vacuum seal to influence myofascial tissue physiology. The cups use negative pressure to visibly lift the skin away from the body. Cupping is thought to improve microcirculation, nerve stimulation, and decrease areas of bodily pain and muscle tension (along with many other theoretical benefits). Cupping has been used for centuries among care practitioners, but it has come back in a new and more popular manner to help with chronic neck pain, low back pain, shoulder pain, problems with the knee, and to increase pressure-pain tolerance. It is also being used to enhance athletic performance for professional and Olympic athletes.