Rheumatoid arthritis (RA) is a disease in which the body's immune system begins attacking the lining of the joints. Learn about symptoms and treatment.
Lupus is an autoimmune disorder that causes inflammation in the joints and blood vessels, along with skin and neurological symptoms.
Lupus is an autoimmune disease that causes rampant inflammation throughout the body; lupus nephritis is the diagnosis when the kidneys are involved.
Condition in which the bursae--fluid filled sacs at joint and muscle interfaces--become inflamed or irritated causing pain, swelling, and stiffness.
About 65 percent of regular runners get hurt each year. It’s estimated that the average runner will sustain one injury for every 100 hours he or she runs.