Why Do Some People Get Rheumatoid Arthritis?
August 27, 2007Several factors may increase your risk of developing rheumatoid arthritis, but for now the true cause of rheumatoid arthritis remains a mystery. Rheumatoid arthritis affects approximately 2.1 million Americans. Unlike osteoarthritis, which occurs equally in both sexes, more than three times as many women as men have rheumatoid arthritis. Osteoarthritis usually begins late in life; rheumatoid arthritis often begins between ages 30 and 50, though it can develop at any age. …