Accumulating mental capital: 401(k) for the brain?

Annie Murphy Paul: “Enriching Your Brain Bank”
Annie Murphy Paul Enriching Your Brain Bank http://anniemurphypaul.com/2013/07/enriching-your-brain-bank/

Last week, I linked up an article about research showing that reading can help slow cognitive decline in old age.

Annie Murphy Paul riffs of the same topic here, arguing that we should think about "accumulating mental capital" just as we save money for retirement.