cognitive test

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.

Those who think signs of cognitive decline start around age 60, a new study has some unwelcome news: Brain function could start lessening beginning at age 45.

Those who think signs of cognitive decline start around age 60, a new study has some unwelcome news: Brain function could start lessening beginning at age 45.

Are older brains slower to make decisions? Yes, but they're just as accurate as young  brains -- even up to ages 85 and 90, new research finds.