Why is it often easier to start a fitness program than it is to maintain one?

Starting a fitness program often comes with excitement and motivation, driven by the desire for change and immediate results. However, maintaining that program requires consistent effort, discipline, and the ability to overcome obstacles such as time constraints, fatigue, and plateaus. Additionally, as initial enthusiasm fades, individuals may struggle with finding the same level of motivation and accountability, making it more challenging to sustain their efforts over time.