If it's a problem requiring the old gray matter that you're confronting, being in good physical shape may help – especially if your gray matter is, in fact, old. Or your white matter, for that matter.
Six months of aerobic exercise – a walking program – beefed up gray and white matter in the brains of formerly inactive senior citizens in a recent University of Illinois study, at a time of life when folks were once thought to suffer an inevitable decline in brain volume and density.
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