Serial dieters will know that the first week, or even month, of a new diet or exercise regimen is often a time of super-high willpower, intense focus, and a sense of deep determination.
That initial enthusiasm doesn't last long though, and many people give up in despair at the thought of the months ahead - often regaining the weight they've managed to lose (and then some).
So, how can you keep up your motivation when you know you've got a long way to go before you reach your goal?