How can I use my smartphone to help me get fit?

To get fit, track your progress on your smartphone. Fitness apps can be used for tracking a variety of workouts, so be sure to make the most of yours. Basic features include tracking speed, number of steps, distance, elevation, and route, all of which can be shared socially. Some apps, such as Cardio Trainer, egg you on by letting you compete with users around the world. The Nike+ app keeps a record of your runs and, based on your goal, tells you how many miles you need to cover during your next workout.

Take the RealAge Test!