Some authors have conceptualized depression as a "depletion syndrome" because of the prominence of fatigability; they postulate that the patient exhausts his available energy during the period prior to the onset of the depression and that the depressed state represents a kind of hibernation, during which the patient gradually builds up a new story of energy.
As applied to substance abuse, the cognitive approach helps individuals
to come to grips with the problems leading to emotional distress
and to gain a broader perspective on their reliance on drugs for
pleasure and/or relief from discomfort.
Cognitive therapy seeks to alleviate psychological stresses by correcting faulty conceptions and self-signals. By correcting erroneous beliefs we can lower excessive reactions.