'Brain Age 2' for Nintendo DS.
(Nintendo of America)

Nintendo's 'Brain Age 2' is one of several games that promote mental exercises purported to make the brain more agile and fit.

This week's All Tech Considered is about a group of Wii Sports bowlers and about technology that is being geared toward the elderly. Games like Brain Age 2 have been part of a wave of products that have widened the audience for gaming and are purportedly therapeutic to stimulate the brain. (Much research is being done in this area and so far the findings are less than conclusive.)

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