No, this doesn't mean join the Armed Forces; it simply means to put yourself into a situation that motivates you socially to exercise. For example, whatever community or neighborhood you live in, there is most likely some annual racing event. Whether it's a 5-K or the Boston Marathon, there should be something out there that gives you not only a specific goal, but also a reason to train as hard as you can. You don't necessarily have to go out to win -- or to even place in the top ten, but you should strive to at least finish. Being considerate of your limits and boundaries, when setting lofty goals like race involvement, will help to stave off discouragement. Positive results, such as the aforementioned race finish will encourage you to sign up, next year and compete to beat your previous time. Check out the Road Runners Club of America and see what kind of featured event they are supporting in your area.