High levels of aerobic exercise, with associated increased calories, will increase your physical endurance but this doesn't necessary translate to increased longevity. You are increasing your metabolic rate, which means that your cell lines are replicating more frequently, so cellular senescence is likely to occur sooner. This is referencing the principle I mentioned earlier. And no, doing bugger all will not increase not increase your lifespan. Exercise levels should be sufficient for maintenance of physical health.