Arthritis is a common term used to describe inflammation of the joints, which can result in pain, stiffness, and decreased range of motion. There are over 100 different types of arthritis, with the two most common being osteoarthritis and rheumatoid arthritis. Osteoarthritis is a degenerative joint disease that occurs with aging and wear and tear on the joints, while rheumatoid arthritis is an autoimmune disorder in which the body's immune system attacks the joints. Research in the field of arthritis focuses on understanding the underlying causes of the disease, developing new treatments to alleviate symptoms and slow disease progression, and improving the quality of life for individuals with arthritis. This research may involve studying the genetics of arthritis, identifying risk factors, testing new medications, and exploring the role of diet and exercise in managing symptoms.