of arthritis behave differently.
### Osteoarthritis
Osteoarthritis is the most common form. It develops when cartilage and other joint tissues gradually change or become damaged.
Typical features include:
* Pain that often worsens with use
* Shorter periods of morning stiffness
* Reduced mobility
* Swelling after activity
* Grinding or scraping sensations
### Rheumatoid Arthritis
Rheumatoid arthritis is an autoimmune disease in which the immune system attacks joint tissues.
It often causes:
* Painful, warm, swollen joints
* Morning stiffness lasting more than 30 minutes
* Fatigue
* Symptoms affecting similar joints on both sides of the body
Because rheumatoid
