<p>Chances ?r? th?t if ??u have ever ?t?rt?d ?n a fitness ?r?gr?m ??u g?v? ?t u? ?ft?r a wh?l?. You ?r?b?bl? began with gr??t enthusiasm and m??b? g?t ??m? g??d r??ult? in th? b?g?nn?ng. S? wh? d?d ??u g?v? it u?? Y?u h?v? ?r?b?bl? fallen v??t?m t? ?n? (or all) ?f th? big 3 k?ll?r? of exercise programs: t?m?, m?n?? and energy. Let's take a l??k ?t all ?f th?m to see why they k?ll ?r?gr??? and what you ??n d? t? g?t back ?n ?h??? w?th a ?r?gr?m yo...