< Back to All Videos thirdAGE > What Causes Rheumatoid Arthritis?Up Next... 10Treating Back Pain Treating Back Pain Treating Knee Osteoarthritis Yoga and Back Pain Error loading media: File could not be played 00:00 00:00 Bone + Joint Health What Causes Rheumatoid Arthritis?RA is a serious autoimmune disease—but what causes it?Related Videos Treating Back Pain Treating Knee Osteoarthritis Yoga and Back Pain Technology and Hand Pain Treating Back Pain Treating Knee Osteoarthritis Yoga and Back Pain Technology and Hand Pain Treating Back Pain Treating Knee Osteoarthritis Yoga and Back Pain Technology and Hand Painprevnext Share this: