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January 22, 2026 Do Brain Games Really Work? What Puzzles and Crosswords Can (and Can’t) Do for Your Brain

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Overview

Crosswords, Sudoku, Wordle, brain-training apps. Many of us turn to puzzles hoping they’ll help keep our minds sharp. But do these activities actually improve brain health? In this Learn at Home webinar, Isaac Health's co-founder and Chief Medical Officer Dr. Joel Salinas explores what decades of research tell us about mental stimulation, cognitive reserve, and aging. Drawing on insights featured in The New York Times Brain Health Challenge—where Dr. Salinas was recently quoted—he breaks down what kinds of activities truly support brain health, and why novelty, challenge, and social connection matter more than a single puzzle.

  • Joel Salinas, MD

    Joel Salinas, MD, MBA, MSc, FAAN Chief Medical Officer and co-founder, Isaac Health