It’s called autophagy, and when it’s turned on, the complex operation not only can slow down the aging process, it can optimize biological function as a whole, helping to stave off all manner of diseases and affording us the healthy life spans we never thought possible. It’s the body’s ultimate switch to life. So how can we positively activate this switch? How frequently should we fast and for how long? Which foods dial up autophagy or, conversely, turn it down? How much exercise and what types are recommended? What’s the sweet spot between intermittent fasting, protein cycling, and ketogenic eating? Backed by a wealth of scientific data and featuring a gallery of guidelines to follow for lasting results, The Switch decodes the science of autophagy and teaches you how to control it and maximize its profound impact.

    With insights drawn from their extensive body image research, Lindsay and Lexie—PhDs and founders of the nonprofit Beauty Redefined (and also twin sisters!)—lay out an action plan that arms you with the skills you need to reconnect with your whole self and free yourself from the constraints of self-objectification.From media consumption to health and fitness to self-reflection and self-compassion, Lindsay and Lexie share powerful and practical advice that goes beyond “body positivity” to help readers develop body image resilience—all while cutting through the empty promises sold by media, advertisers, and the beauty and weight-loss industries. In the process, they show how facing your feelings of body shame or embarrassment can become a catalyst for personal growth.

    Elite athletes have known this for decades and now science is learning why it s true. In his fascinating new book "How Bad Do You Want It?," coach Matt Fitzgerald examines more than a dozen pivotal races to discover the surprising ways elite athletes strengthen their mental toughness.Fitzgerald puts you into the pulse-pounding action of more than a dozen epic races from running, cycling, triathlon, XTERRA, and rowing with thrilling race reports and revealing post-race interviews with the elites. Their own words reinforce what the research has found: strong mental fitness lets us approach our true physical limits, giving us an edge over physically stronger competitors. Each chapter explores the how and why of an elite athlete s transformative moment, revealing powerful new psychobiological principles you can practice to flex your own mental fitness.The new psychobiological model of endurance performance shows that the most important question in endurance sports is: how bad do you want it? Fitzgerald s fascinating book will forever change how you answer this question and show you how to master the psychology of mind over muscle. These lessons will help you push back your limits and uncover your full potential."How Bad Do You Want It?" reveals new psychobiological findings including: Mental toughness determines how close you can get to your physical limit. Bracing yourself for a tough race or workout can boost performance by 15% or more. Champions have learned how to give more of what they have. The only way to improve performance is by altering how you perceive effort. Choking under pressure is a form of self-consciousness. Your attitude in daily life is the same one you bring to sports. There's no such thing as going as fast as you can only going faster than before. The fastest racecourse is the one with the loudest spectators. Faith in your training is as important as the training itself.Athletes featured in "How Bad Do You Want It?" Sammy Wanjiru, Jenny Simpson, Greg LeMond, Siri Lindley, Willie Stewart, Cadel Evans, Nathan Cohen and Joe Sullivan, Paula Newby-Fraser, Ryan Vail, Thomas Voeckler, Ned Overend, Steve Prefontaine, and last of all John The Penguin Bingham"