Recent research shows that self-control may actually get depleted as we use it. One study, for example, put dieters in a room with some highly tempting snacks (Doritos, Skittles, M&Ms, salted peanuts) and gave them a computer task to perform. For some, the snacks were placed, highly visible, on the table right next to them. For others, the snacks were far away, out of mind. Having completed the computer task, subjects were given access to large containers of ice cream. Those who had been sitting next to the snacks, continuously resisting the urge, finally caved. They ate significantly more ice
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