Yes, and because there's no cure, arthritis disease prevention is the best option. The three big things you can do are to work out regularly and stay active; to maintain a healthy weight, and to prevent injuries to your joints. Slimming down can also help if you already suffer from arthritis. When you walk, your knees absorb a force equal to about 3 times your body weight. So losing just 10 pounds actually relieves each knee of about a 30-pound load with every stride you take.