New York Times bestselling author Ben Greenfield delivers the latest in cutting-edge techniques, products, and protocols in his fully updated and revised blueprint for total human optimization.

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 and performance technology and science evolve at lightning speed, Greenfield has buckled down and 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.

This new edition has been thoroughly revised and contains everything you need to easily implement every last human upgrade in existence into your daily routine--from sleep to cognition, hormones to fat loss, immunity to beauty, fitness to age reversal, and beyond.

Key updates include:

- How to turn up the volume on mitochondrial optimization, density, and biogenesis for maximizing your energy currency and minimizing risk of metabolic dysfunction.
- New ways to stimulate your vagus nerve for beating stress, sleeping soundly, and increasing HRV, including the best ways to use electricity, light, and sound to fine-tune your nervous system.
- Updated step-by-step systems for rebooting your circadian rhythm, beating jet lag, and optimizing sleep, naps, and meditation for the deepest relaxation and recovery.
- Navigating the confusing world of fats and fatty acids while mitigating the damage of seed oils and decoding restaurant menus and packaged food labels.
- The latest science on how EMFs and electromagnetic frequencies impact your brain, and how to modify your appliances, devices, computers, and smartphones to shield your body, brain, home, and office more effectively.
- How to increase libido and sexual performance, go a longer time with more pleasure in the bedroom, decrease time between orgasms, and develop better, deeper relationships.
- The latest science on chronic, stealth co-infections, mold, mycotoxins, detoxification, Lyme, CIRS (chronic inflammatory response syndrome), and more--along with how to manage these issues safely and effectively.
- A fully updated list of the best doctors on the planet and the medical teams and clinics who can help fix issues using smart precision, diagnostic, and functional medicine protocols.
- Brand-new smart drugs, brain-boosting peptides, and nootropic stacks Ben has never before revealed, along with precise instructions for managing TBIs and concussions.
- The latest age-reversal supplements, drugs, biohacks, and tactics based on results of Ben's latest half-decade of experimenting with the new science of longevity and age reversal.
- The truth about a hidden but highly prevalent sleep assassin never mentioned in the first edition of Boundless, and exactly what you can do about it.
- Done-for-you instructions for how to use Ben's favorite little-known minimalist moves to burn more fat all day long, without stepping foot into the gym.
- The latest research on fat-loss peptides like Ozempic and GLP-1 agonists, whether they really work, and safer, more natural alternatives for quelling cravings and satiating your appetite.
- The truth about what it really takes to live a long time, especially if you're not a wealthy tech entrepreneur or biohacking billionaire but still want the best options for regeneration and rejuvenation.
- Fully updated fitness routines, morning habits, and daily structure for the most potent combination of physical and mental performance and productivity.
- How to build your own blue zone and biohacked home, including brand-new strategies to optimize the air, light, water, electricity, and health of your living and working environments.
- The latest tips, tricks, and tools to recover and fix injuries faster while reducing nagging aches and pains that keep you from the sports and workouts you love.
- Hidden reasons your gut isn't working the way you want it to, and how to fix it for good using the most up-to-date tests, supplements, detoxifications, diets, fasting protocols, and healing strategies.
- Ben's latest thoughts on the keto and carnivore diets and how to modify them to make them healthier.
- Brand-new recommendations for immune assailants like cancer and viruses, along with a fully detailed list of exactly what Ben would do if he got cancer.
- The best of self-quantification, with the latest list of labs, reference ranges, and tests for analyzing your body, brain, blood, and biomarkers with the greatest accuracy and precision.
- Why Ben has changed his approach to oral care and dentistry, and how to take care of your body, heart, and health, beginning with your mouth.
- How Ben stays healthy and maintains the ideal routine at home and when traveling, along with new, minimalist go-to travel and "busy day" dietary approaches.

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!