Based on science, people who solve word games and brainteasers have a significant cognitive advantage over those who do not. 399 Games, Puzzles Trivia Challenges is the illustrated game book specifically created to cross-train the brain. Fun games to stretch, challenge and engage your clients, all of which stimulate the formation of neurons - literally, regrowing the brain. Games are arranged from easiest to most difficult and are labeled according to which cognitive functions they exercise so they can be mixed and matched into a custom “workout.” In just 15 minutes a day anyone can improve their mind!