http://bestwalkingshoes4men.com/shoes-for-arthritis/ Arthritis is classified as two types, osteoarthritis, and rheumatoid arthritis. Rheumatoid arthritis is a condition where the immune systems malfunctions and leads to swelling of the various parts of the body. It could also impact vital organs like kidney, liver, and heart. Osteoarthritis, on the other hand, is more common and is caused by wear and tear of the joints and ligaments. It progresses with age and causes problems in movements and hampers daily living too.