What happens in rheumatoid arthritis, exactly?

What is it? Rheumatoid arthritis (RA) is a long-term condition that typically causes joints to become painful, swollen and warm. It is an autoimmune disease which means that it is caused by the body’s immune system attacking the body itself. RA affects about 0.5% to 1% of adults in the developed world. Women are affected… Continue reading What happens in rheumatoid arthritis, exactly?