BLOOD-GLUCOSE AND SUBJECTIVE ENERGY FOLLOWING COGNITIVE DEMAND

Previous studies have found a small association between the level of b lood glucose and subjective reports of energy in those sitting quietly . Given reports that both memory and attention are influenced by the l evel of blood glucose it was hypothesised that under conditions of cog nitive demand there would be a stronger association between mood and b lood glucose levels. In three studies, with three cognitive tasks, the Stroop Task, Rapid Information Processing Task, and a difficult test of hand-eye coordination, falling blood glucose was associated with fe eling less energetic. (C) 1997 Elsevier Science Inc.