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brain fag

brain fag Brain fag is a historical psychology term for a state of marked mental fatigue in which the range of consciousness becomes greatly narrowed, so a person can manage little beyond the immediately passing thought or word.

Brain fag is a historical psychology term for a state of marked mental fatigue in which the range of consciousness becomes greatly narrowed, so a person can manage little beyond the immediately passing thought or word. In this condition, thinking continues with difficulty and slowness, even though ideas still follow one another in sequence.