But the effects of arthritis go beyond aching fingers, and aren't limited to the elderly. There are more than 100 types of arthritis, all characterized by joint pains and decreased flexibility. OA can affect the hands, hips and spine, but is most disabling when it strikes in the knees.
Arthritis is caused by deterioration of the joint cartilage that lines the ends of the bones.
As cartilage weakens, it fragments. Bony and knobby spurs form at the edges of the joints, which become stiff and painful as the unprotected joints rub together. Most forms of arthritis develop slowly after age 40, though some may begin to show symptoms as early as age 25. By employing three strategies, you can protect your joints from this painful condition. Excess weight places heavy stress on the knees, hips and lower back.