Does 'Brain Training' Really Improve Cognition?

Some companies claimed that engaging in "brain games" can improve cognition or stave off cognitive decline. What's the evidence and do crosswords and Sudoku count?
Medscape Medical News

source https://www.medscape.com/viewarticle/does-brain-training-really-improve-cognition-and-forestall-2024a100088j?src=rss

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