Medical Ego Depletion and Decision Fatigue

[ForMyThunder]

So I've become aware that the more "good" choices we make, the easier it is to make a "bad" choice, e.g. if you're on a diet for a couple of months, its very easy to slip and have a piece of chocolate cake, that sort of thing. Here's the wikipedia.
http://en.wikipedia.org/wiki/Ego_depletion
So I'm wondering if there is a way to exercise this "muscle" that is responsible for making your decisions seeing as it tires out after making self-control choices. Is there?

 

[Pythagorean]

I don't think it works like that (on the order of months). "Ego depletion" can hardly be separated from other mental tasks besides that self-regulation is generally a more taxing mental process; that makes sense though, you have to monitor yourself as well as the environment, in this case working against processes that you have already long-since automated.

Here are the experiments, they are much shorter time-span than months. If you've been successfully doing something for months, it generally starts to become a habit.

http://216.22.10.76/wiki/Ego_Depletion