What Is Arthritis?
Arthritis is the swelling and tenderness of one or more of your joints. The main symptoms of arthritis are joint pain and stiffness, which typically worsen with age.
What Causes Arthritis?
Some experts think a virus or bacteria may change your immune system, causing it to attack your joints. Other theories suggest that in some people, smoking may lead to rheumatoid arthritis.
What Are the Symptoms of Arthritis?
• Decreased range of motion