Financial analyst. A financial analyst, securities analyst, research analyst, equity analyst, investment analyst, or rating analyst is a person who performs financial analysis for external or internal financial clients as a core part of the job. Contents.
Share +. Text A A A. Rheumatoid arthritis (RA) is an autoimmune disease where the body's immune system attacks normal joint tissues, causing inflammation of the joint lining. This inflammation of the joint lining (called the synovium) can cause pain, stiffness, swelling, warmth, and redness.ext A A A. Rheumatoid arthritis (RA) is an autoimmune disease where the body's immune system attacks normal joint tissues, causing inflammation of the joint lining.
What is rheumatoid arthritis? Rheumatoid arthritis (RA) is a chronic autoimmune disease causing pain, swelling, stiffness and loss of function in the joints. A healthy immune system protects the body by attacking foreign bacteria and viruses, but an autoimmune disease causes the body to mistakenly attack healthy tissue.