Business Insider - To figure out what cupping therapy really does, we spoke to two sports medicine doctors about the science behind the practice.
"When connective tissue becomes adhered and restricted, it prevents us from moving smoothly and can lead to tightness," says Aaron Arreola, a physical therapist and assistant professor in the Department of Kinesiology and Sports Management at Texas Tech University. "We want to separate those tissue layers to let them slide past one another more freely."