Few activities are as intellectually satisfying as solving a challenging puzzle, and the team at HappyNeuron adds to the fun by developing games and puzzles designed with scientific experts to stimulate cognitive operations and memory functions. Each daily page in the all-new Daily Brain Games 2019 Day-to-Day Calendar features a fun and provocative word, number, or conceptual puzzle that engages your brain and helps build cognitive power. It's an invigorating and satisfying way to keep your mind sharp every day.