Rheumatoid arthritis is among the most frequent forms of arthritis. In the USA alone, it affects about seven thousand people, the majority of them women. People of all ages can find this disease, but it usually manifests itself when a person reaches their middle age. As with most other kinds of arthritis, such as gout, osteoarthritis, and psoriatic arthritis, the rheumatoid version can cause intense pain, restricting one's mobility and adversely affecting the patient's quality of life.