As we age, the brain‘s
processing speed begins to slow, and memory may sometimes slip. But
there are other ways that our mental powers grow as we get older. In the
current issue of the journal Psychological Science, researchers report that older people (over 65) showed less variability
in their cognitive performance across 100 days of testing than did
younger people aged 20 to 31. The older adults’ greater consistency “is
due to learned strategies to solve the task, a constantly high
motivation level, as well as a balanced daily routine and stable mood,”
notes one of the scientists, Florian Schmiedek of the Max Planck
Institute for Human Development in Germany.
A colleague of Schmiedek’s, Axel Börsch-Supan, adds that his research
shows that older workers are more productive and reliable, and less
likely to make serious errors, than are their younger colleagues.
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