Cupping: The Healing Technique Leaving Its Mark on Olympians


Many scratched their heads when Michael Phelps arrived poolside with large purple spots on his back. The telltale spots resulted from a practice called "cupping," an ancient Chinese tradition.

Your Playlist Expand Collapse

Nightly Spotlight

Making a Difference

Nightly Films

World News


Stay up-to-date on the latest health and medical news.

Play All


Coverage of extreme weather events affecting people across the country.

Play All


The best political reporting from Nightly News and the NBC News politics team.

Play All

Full Episodes of Nightly News