I love to sweat. All told, I have run distance equal to four trips around the world on a treadmill and on the streets of Manhattan where I live. I have biked to the moon and back, dueling it out with a red, blinking pacer light on a LifeCycle control panel or logging countless laps in Central Park. I’ve even crossed the Atlantic a few times—in the pool—and I’ve swum in almost every ocean around the world competing in Ironman triathlons. When I am running, biking, or swimming, happiness pours out of me. I am not alone. Everyone who exercises regularly experiences this bliss. And it is available to you, too, anytime you break a sweat. The Athlete’s Way is an individual process but ultimately a universal experience. We feel good when we sweat. I have learned how to find Nirvana on the treadmill, and I am going to teach you my secrets. It’s all here in my book. I sincerely hope that you find it enjoyable.