There are many ways to stay healthy . First, you ought to have a healthy diet. For example, you can follow the American food pyramid that contains balanced servings of protein, vitamins, fibers, fat and sugar. Second, you should do some exercises. These exercises will build muscles for your body and keep you fit. Finally, you must avoid smoking. This is because smoking causes a lot of serious diseases, including lung-cancer and heart problems. These are just a few ways to stay healthy.