James Harrison's needle therapy for his massive quads is painful to look at
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."
An error occurred while retrieving the Instagram post. It might have been deleted.
Anyhow, it looks pretty painful.