The sugar levels in the brains of rats were studied by researchers at the University of Illinois. Rats were induced to find their way through a challenging maze to obtain a reward. According to their report published in the journal "Neurobiology of Learning and Memory," the researchers found that in the brain area related to spatial orientation, sugar levels were reduced following the task, but in other brain areas, sugar levels were unaffected.
Researchers found that the brains of older rats suffered a greater reduction in sugar levels than did younger rats after resolving the maze. Sugar level in the younger rats returned to normal at a faster rate than it did in the brains of the older rats. Giving an injection of sugar helped the older rats perform better.
The researchers speculated that an implication of their findings was that a good breakfast might be important for children to do well in school and that perhaps snacks during the day would be helpful as well.
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