With the help of hacker extraordinaire Cable, who finds tweets, photos and videos from one of the plane's passengers, Bull discovers the woman who Ken was really having the affair with: the woman in seat 8D. Bull approaches Mathison about this, and he realizes that the pilot doesn't want to throw Ken under the bus.
The Dangers of Osteoarthritis. Unlike rheumatoid arthritis, which is characterized by systemic inflammation, osteoarthritis is a localized disease that occurs only in the affected joints. With osteoarthritis, the thin layer of cartilage between the joints gradually erodes and wears away.
Rheumatoid arthritis is an autoimmune disease in which the body's immune system attacks joints and other tissues. The pattern of joints affected is usually symmetrical, involves the hands and other joints, and is worse in the morning. Rheumatoid arthritis is a systemic (body-wide) disease, involving other body organs, whereas osteoarthritis is limited to the joints. Both forms of arthritis can be crippling.