Quackery Again Rears Its Head In The Olympics

"The cups don’t need to he heated; suction can also be created by removing air with a small hand-held pump. Either way, many athletes — including 19-time Olympic gold medalist Michael Phelps, who sported circular welts on his shoulders Sunday during the U.S. team’s gold-medal relay swim — are true believers."

‘Cupping Therapy’ Not Science Based, Yet Olympians Swear By It