THE NEW YORK TIMES BESTSELLER • Foreword by Malcolm Gladwell

Limits are an illusion: discover the revolutionary account of the science and psychology of endurance, revealing the secrets of reaching the hidden extra potential within us all.

"A voyage to the outer reaches of human capacity.” —David Epstein, author of Range

"Reveals how we can all surpass our perceived physical limits." —Adam Grant

The capacity to endure is the key trait that underlies great performance in virtually every field. But what if we all can go farther, push harder, and achieve more than we think we’re capable of?

Blending cutting-edge science and gripping storytelling in the spirit of Malcolm Gladwell—who contributes the book’s foreword—award-winning journalist Alex Hutchinson reveals that a wave of paradigm-altering research over the past decade suggests the seemingly physical barriers you encounter as set as much by your brain as by your body. This means the mind is the new frontier of endurance—and that the horizons of performance are much more elastic than we once thought.

But, of course, it’s not “all in your head.” For each of the physical limits that Hutchinson explores—pain, muscle, oxygen, heat, thirst, fuel—he carefully disentangles the delicate interplay of mind and body by telling the riveting stories of men and women who’ve pushed their own limits in extraordinary ways.

The longtime “Sweat Science” columnist for Outside and Runner’s World, Hutchinson, a former national-team long-distance runner and Cambridge-trained physicist, was one of only two reporters granted access to Nike’s top-secret training project to break the two-hour marathon barrier, an extreme quest he traces throughout the book. But the lessons he draws from shadowing elite athletes and from traveling to high-tech labs around the world are surprisingly universal. Endurance, Hutchinson writes, is “the struggle to continue against a mounting desire to stop”—and we’re always capable of pushing a little farther.

Award-winning journalist, physicist, and bestselling author of Endure Alex Hutchinson reveals the little-known and often surprising truths that science has uncovered about exercise, ranging from cardio and weights to competition to weight loss.

There's plenty of conventional wisdom on health and fitness—but how much of it is scientifically sound? The truth is: less than you'd think.

In Which Comes First, Cardio or Weights?, physicist and award-winning journalist Alex Hutchinson tackles dozens of commonly held beliefs and looks at just what research science has—and has not—proven to be true:

• Should I exercise when I'm sick? 
• Do I get the same workout from the elliptical machine that I get from running?
• What role does my brain play in fatigue? 
• Will running ruin my knees? 
• To lose weight, is it better to eat less or exercise more? 
• How should I adapt my workout routine as I get older? 
• Does it matter what I'm thinking about when I train? 
• Will drinking coffee help or hinder my performance? 
• Should I have sex the night before a competition?

This myth-busting book covers the full spectrum of exercise science and offers the latest in research from around the globe, as well as helpful diagrams and plenty of practical tips on using proven science to improve fitness, reach weight loss goals, and achieve better competition results.