INTRODUCTION

Growing up, I was pretty active. I participated in a wide variety of sports—some formal, as part of a team, and others more casually. I never excelled at any one sport, but I could hold my own in many of them. Outside of team practices, I never really trained for anything. I always gave effort, but I didn’t have focus. It’s safe to say that in my youth I took fitness for granted. I had a solid foundation of capability and fitness, but did not develop good, sustainable habits. That would eventually come back to haunt me, but my response would come to define me.

Flash forward to my late 20s, and my fitness as I once knew it was gone. I had gained weight and lost stamina. It seemed as if my fitness had disappeared in the blink of an ...

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