The idea that puzzles can slow brain aging is controversial.
Some neurologists strongly recommend puzzles like crosswords and sudoku as a way to keep your mind sharp into old age. Others say they don’t help your brain do anything better…other than puzzles.
But major new research shows that crossword and sudoku puzzles are extremely effective in preserving mental sharpness.
The two studies were published in the International Journal of Geriatric Psychiatry.