Biology
Autoimmune Pathogenesis of Rheumatoid Arthritis
Quick fact
Rheumatoid arthritis is an autoimmune disease that affects about 1% of the world's population, with women being affected about three times more often than men.
Why this is interesting
Your immune system is supposed to defend you from invaders, but in rheumatoid arthritis it turns against your own joints. Why would the body's defenders attack its own tissue, and what can we do to stop them?