This book is written in two main sections.In Part 1, we'll explore the concept of retirement and what a successful retirement looks like from the angle of health and fitness. Then, since history is my biggest passion after fitness, we'll have a look at the history of exercise and how and why our collective activity level took a nosedive during the 20th century. We'll also examine five myths of aging, and why they are just that - myths. Then we'll...