In this tutorial, we learn how to understand rheumatoid arthritis. This concentrates by attacking the joint spaces and causing a reaction. This doesn't happen for an exact reason, but it usually occurs in older individuals between 40-60 years old. This also occurs in young children rarely. The symptoms are when the joints become inflamed and painful. This happens around the knees, ankles, neck, and more. This attacks both sides of the body and the same body parts at once. Fatigue, fevers, morning stiffness, and pain are signs of having this disease. There are treatments available, but no cure. This isn't to be confused with osteoarthritis.