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There is a strong connection between scarce resources and cognition: The more a person struggles financially, the less he or she can channel brain processes to completing other tasks. When you can’t make ends meet, the weight of worry occupies a large portion of the mind. - 2013/08/31
Previous research had found that the prefrontal cortex, the brain region behind the forehead, tends to lose volume with age, and that part of this region helps sustain quality sleep, which is critical to consolidating new memories. But the new experiment, led by researchers at the University of California, Berkeley, is the first to directly link structural changes with sleep-related memory problems.