Arthritis is a condition that causes pain, swelling, and stiffness around your joints: like your knees, elbows, and fingers. To take care of arthritis, it's important to move around and exercise, since that helps to keep your joints stronger and flexible. It's also important to take breaks, so you don't put too much strain on your joints. Eating healthy can help reduce your pain, especially if you stick to foods from all the food groups. Finally, you should talk with your doctor if your pain is too much and they can prescribe medicines to help you.