What is Arthritis? Arthritis is an inflammation of joint. According to Zimmerman (2016), “arthritis is an over surplus of acids and waste material in the body. A faulty diet fills the system with uric acid and poisons which the liver, kidneys, and bladder are not able to throw off.” Based on psychology factors, Louise Hay mentioned that arthritis is a disease that comes from a constant pattern of self criticism and criticism of other people. The two most common types of arthritis are osteoarthritis (OA) and rheumatoid arthritis (RA). Osteoarthritis (OA) Vs. Rheumatoid Arthritis (RA) The following table 1 showed the brief summarize of the difference between Osteoarthritis (OA) and Rheumatoid arthritis (RA) which I have compiled through difference studies. The main differences are OA is a degenerative joint disease which is characterized by “wear and tear” and breakdown of the articular cartilage . RA is an autoimmune disease ...