This is an excerpt from Charles B. Corbin, Darla M. Castelli, Benjamin A. Sibley, and Guy C. Le Masurier's Fitness for Life, 7th Edition, and Cloth with Web Resources.

Do you maintain a healthy way of life? Do you consume a balanced diet? Do you engage in any physical activity? Many teenagers stay active and eat healthily, but will you do the same when you're older and on your own?