Ego depletion refers to the idea that self-control or willpower is an exhaustible resource that can be used up. When that energy is low (rather than high), mental activity that requires self-control is impaired. In other words, using one's self-control impairs the ability to control one's self later on. In this sense, the idea of (limited) willpower is correct.
Casa Robino
Shared Hospitality Excavations
