cognitive function

Try saying this 10 times fast: "pad kid poured curd pulled cod."

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.

They're age 80 and older, yet they have the memory and brain power of people in their 50s. So what's their secret?