Mental fitness or mental wellness is the state of being robustly resistant to stress, hardy enough to challenge head first the many challenges of life, and having the ability to enjoy the entire process and look forward to more. The brain is the "muscle" of conscious intelligence. Just like the muscles in the rest of your body, it develops and gains strength during youth, reaches a peak, and then can either be maintained over the rest of your life, or be allowed to degenerate and lose capability and agility.
To exercise one's mind is to sharpen and improve the most human thing a human being possesses. The book shows you how to do it and amply proves that the process is fun as well. It provides information about how to strengthen, flex, tone and coordinate your mental muscles and eliminate mental flab. Based on pains taking research and long experience, the book bears a stamp of authority. The simple and lucid style makes the book imminently readable and informative.