What if the ability to look, feel, and perform at peak capacity wasn’t the stuff of lore but instead a matter of simply knowing and following proven, easy-to-understand systems and strategies? In an ideal world, you could have it all: complete optimization of mind, body, and spirit–and now you can. Author, biohacker, and coach Ben Greenfield revealed how to have all the boundless energy you want at your beck and call, and much more, in his wildly popular book Boundless. But because health & performance technology and science evolve at lightning speed, Greenfield has buckled down & used his industry knowledge, voracious appetite for self-experimentation, and thousands of hours of personal research to deliver to an updated edition of his internationally acclaimed book. Like a cookbook for the human blueprint, the revised and updated edition of Boundless gives you a zero-guesswork guide to becoming a complete expert in what makes your brain tick, your body work, your spirit happy, and your life fulfilled. You can flip to any chapter and discover the most up-to-date, research-proven, trench-tested techniques to build muscle, burn fat, balance hormones, live longer, sleep better, have mind-blowing sex and much, much more!