I know, it is interesting, because it sounds completely against conventional way of thinking. Willpower is something that suppose to drive us, but that is not true. It is just the opposite. We don't need willpower to do something we like because our desire is much more powerful than willpower. When we are interested in something, it drives us without our complete awareness because our mind is capable of concentrating so well that nothing is in the way to slow down our performance. But, when we try to force our will onto ourselves to do something we don't really want to do, we engage in the battle that we can't win. Eventually we get tired because our desire is much stronger than our will.

So, if your desire makes you gain weight, because you always want to eat something tasty, then it is pointless to fight your desire with your willpower. It is much easier to become more goal oriented and be passionate about your goals. It is important that you exercise positive thinking of exercising in the gym and eating the right foods, because it is the seed that will help you concentrate on what you want. The stronger your interest will become in losing weight or living an active life, the easier it will be to give up your bad habits.

If you excite yourself enough, you will go to the gym because you want too. And as long as you don't over exercise or stay too hungry, your old desire of pleasing yourself with food will eventually disappear. In my experience when I over exercise I feel beat up for days which promotes laziness and many times distracts me from exercising or dieting consistently.

The idea is to maintain interest, but don't stand in front of the mirror, and don't look at yourself when you are working out, your interest has to be in the active way of life itself and not in the actual results, because if only results that excites you, then you are likely to be disappointed to soon before you learn to enjoy an active way of life, which will definitely help you lose weight, if that is your desire.