James Harrison's needle therapy for his massive quads is painful to look at

Published Mar. 18, 2016 1:10 p.m. ET

Dry needling therapy is used to treat the musculoskeletal and nervous systems. It's similar to but not quite acupuncture, which is based on a "Meridian system" that "maps out the flow of Qi throughout the body."

Anyhow, it looks pretty painful.