Older adults who frequently do puzzles like crosswords or Sudoku had the short-term memory capacity of someone eight years their junior and the grammatical reasoning of someone ten years younger in a new study. (n = 19,708)

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Older adults who frequently do puzzles like crosswords or Sudoku had the short-term memory capacity of someone eight years their junior and the grammatical reasoning of someone ten years younger in a new study. (n = 19,708)