A long-distance runner who wants to achieve his personal best time at the next cross country meet should focus on training with aerobic activities to accomplish this goal. <span />
I would say addiction becasue then you will continue to want more and more.
<span>Delayed gratification, or deferred gratification, is the ability to resist the temptation for an immediate reward and wait for a later reward. Generally, delayed gratification is associated with resisting a smaller but more immediate reward in order to receive a larger or more enduring reward later.</span>
Feel less pain at the moment but not in the future
