How many people really pay attention to fitness keeping? It is an interesting question. We all know that we pay attention to fitness. But for fitness keeping, it is another question. Who really pay attention to fitness keeping? It is another interesting question. In China, children seldom care about it, students seldom care, the teenagers seldom care, middle age people lack of time to care. May be only the old people will pay attention to it seriously. These two are really interesting questions. The common answer is that we lack persistence to keep. After all, there aren’t so many choices like P90X to attract people’s attention and lure the trainer to hold on to the end.