Over half of the nearly 24 million Americans with diabetes also have osteoarthritis. It's the most common kind of arthritis, which occurs when the cartilage that provides a cushion between bones wears away, causing inflammation, stiffness, and pain in joints. One disease affects the other. "Controlling arthritis is critical to diabetes management and vice versa," says John H. Klippel, M.D., the president and CEO of the Arthritis Foundation in Atlanta. Staying active and at a healthy weight are key. Here are seven important facts that can help you manage both conditions to help you stay healthier. Click here to download a printable PDF version of this slideshow