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Showing posts with the label lifestyle

Lifestyle Effects on Working Memory Ability

On multiple occasions, readers of my learning and memory blog posts asked me what they could do to improve their working memory. This is an important and very practical question. Working memory affects all aspects of life success: personal, educational, and professional. I usually tell them to practice attentiveness and concentration. But I probably should tell them to adapt a healthier lifestyle. For over a decade a variety of studies have implicated lifestyle in memory function. A rigorous new study confirms these results. An Israeli research team studied 823 participants, aged 22-37 years, using brain scans taken during a difficult memory task, post-scan memory tests, and numerous measures of health and lifestyle. The brain scans identified the brain areas that particularly engage in working memory tasks, most important of which were the dorsolateral prefrontal cortex, parietal cortex, and anterior cingulate cortex. These then served as a frame of reference to check for correlations...

Aging Shrinks the Brain

In most people, their brains get smaller as they age. It is not so much that neurons die but that their terminals and synaptic junctions shrivel. A known cause is the over-secretion of cortisol by stress, but perhaps there are also other age-related causes. However, shrinkage with age is not inevitable. Certain people are "super-agers," defined as adults over 80 with memory at least as good as normal middle-aged adults. A usually reliable index for decline in memory ability is the degree of brain shrinkage, specifically cortical volume. Brain-scan studies show that super-agers have thicker layers of cortex than do others of the same age. Thus, their cortex has not shrunk as much as average elderly or they had more to start with. It is possible that something about the lifestyle of super-agers protected them from brain atrophy. It is not convenient to know how much cortical volume the elderly had in their youth. But the second option has been tested in a study that compared th...
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Improving Memory Involves More Than Gimmicks Two elderly couples were enjoying friendly conversation when one of the men asked the other, "Fred, how was the memory clinic you went to last month?" "Outstanding," Fred replied. "They taught us all the latest psychological techniques - visualization, association - it made a huge difference for me." "That's great! What was the name of the clinic?" Fred went blank. He thought and thought, but couldn't remember. Then Fred smiled and asked, "What do you call that red flower with the long stem and thorns?" "You mean a rose?" "Yes, that's it!" He turned to his wife. . ."Rose, what was the name of that clinic?" Memory techniques, like visualized associations, are important for improving memory. I sometimes get chided, as in a recent commentary, for writing about things that readers think are unrelated to memory. But memory is not independent of everything ...