Rheumatoid arthritis increases your risk of heart disease and heart failure. Learn more about reducing your risk and preventing cardiac complications.

Rheumatoid arthritis is a painful and disabling autoimmune disease that affects more than 1% of people worldwide. In the United States alone, it disrupts the lives of about 1.

Researchers have been able to see what happens in inflamed joints of children with arthritis, giving insight into why treatments affect children differently.