Although this activity book was produced for upcoming Whiz Kids, puzzle solving is not just for youngsters.Brain studies have shown that word search and other puzzles can help improve memory, focus, vocabulary, and overall mental acuity.Dopamine is naturally produced in our brains. Touted as the "reward molecule", neuroscientists are linking dopamine to perseverance and the sense of accomplishment. When we finish a task, like finding words in a word...