Think you should worry about your brain slowing down post-age 50? Too late. It's already started at age 24. Or at least that's what a Canadian study of players of a hypercompetitive computer game has found.
Having a bad day at work? If you are, you're probably in your 20s, says a new German study that finds that workers age 65-plus are cognitively more consistent, reliable and productive than workers much younger.
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