Arthritis wears down joint cartilage, damaging the bones, connective joint tissue, and fat, and mostly affects your back, hands, hips, knees, and neck but may involve any joint. 1 Doctors say there is ...

Rheumatoid arthritis, a progressive, debilitating autoimmune disease in which the body attacks the joints, received 67% of the funding predicted based on its impact; low back pain, which costs the U.S ...