Use it or lose it: how to sharpen your brain as you age

Many of us believe that cognitive decline is an inevitable part of
ageing, but a new study looking at how our skills change with age
challenges that idea. Ian Sample talks to Ludger Wößmann, a
professor of economics at the University of Munich and one of the
study’s authors, to find out how the team delved into the data to
come to their conclusions, and what they discovered about how we
can all maintain our faculties for as long as possible. Help
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