Freshness Big Year: Why a geek should huff and puff

Margaret Heffernan’s “Wilful Blindness: Why We Ignore the Obvious at Our Peril” is an intriguing look at our mental boundaries but I especially like this rather opinionated take on physical fitness:

Many people – and not a few companies – like to think that they can somehow stretch the cognitive limits of their minds, that doing lots of Sudoku or using programs like Brain Trainer will somehow enlarge their capacity. They’re out of luck. The only exercise that seems to nurture, or at least protect our brains is aerobic exercise. Yoga, toning and stretching may make you feel good but, in fMRI scans, only aerobic exercise seemed to have a visibly positive impact on the brain. If you want to protect your own intellectual capacity, or that of your employees, the only way to do that is to go to the gym . . .

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