417 More Games, Puzzles & Trivia Challenges Specially Designed To Keep Your Brain Young

What the legions of fans of 399 Games, Puzzles & Trivia Challenges Specially Designed to Keep Your Brain Young have been clamouring for; more puzzles and games not just to entertain, but to help adults aged 50 and over improve their main cognitive functions - created by a professional who works with seniors, and vetted by a leading neuroscientist.