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🧩 Unlock your brain’s full potential—one puzzle at a time!
399 Games, Puzzles & Trivia Challenges is a neuroscience-endorsed brain training book featuring a diverse collection of puzzles designed to enhance six critical cognitive functions. With progressive difficulty levels and just 10-15 minutes of daily play, it promotes neurogenesis and long-term brain health, making it a top-rated bestseller in aging and brain teaser categories.











| Best Sellers Rank | #2,175 in Books ( See Top 100 in Books ) #20 in Aging (Books) #23 in Puzzles (Books) #23 in Logic & Brain Teasers (Books) |
| Customer Reviews | 4.6 4.6 out of 5 stars (7,942) |
| Dimensions | 7.25 x 1 x 9.25 inches |
| Edition | Illustrated |
| ISBN-10 | 0761168257 |
| ISBN-13 | 978-0761168256 |
| Item Weight | 2.31 pounds |
| Language | English |
| Print length | 424 pages |
| Publication date | September 25, 2012 |
| Publisher | Workman Publishing Company |
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