Cross-train your brain Exercising the brain is like exercising the body--with the right program, you can keep your brain young, strong, agile, and adaptable. And like the most effective exercise, you don't target just one area. This follow-up to the bestselling 399 Games, Puzzles & Trivia Challenges Specially Designed to Keep Your Brain Young, offers 417 games that target six key cognitive functions.

Here are games to improve long-term memory and games to flex working memory. Games for executive functioning, for attention to detail, for multitasking, and for processing...