I'm a former physicist, a lifelong runner, and (most of all, these days) a science journalist. In the pages of Runner's World, my "Fast Lane" column focuses on training for peak performance -- workouts, racing strategies, and other battle-tested tips to bring down your PRs.
You can read more about my background at my personal website if you're interested. In brief, I started my career as a physicist doing postdoctoral research with the National Security Agency, and competed as a national-class runner for Canada for a decade. In my late 20s, I switched from scientist to science journalist; since then, I've won a National Magazine Award and my writing has appeared in the New York Times, the Washington Post, Outside, Popular Mechanics (where I'm a contributing editor), Men's Journal, Bicycling, and elsewhere. You can read some examples of my work here.
My latest book is called Which Comes First, Cardio or Weights? Fitness Myths, Training Truths and Other Surprising Discoveries from the Science of Exercise. Yes, it's a mouthful. The premise is pretty simple: it takes 111 common (and uncommon) questions about fitness -- e.g. Should I exercise when I'm sick? And what's the actual difference between running on a treadmill, running on an elliptical trainer, and running outside? -- and digs up the current state of peer-reviewed knowledge. It's not a textbook: the aim is to make the research accessible to anyone who's interested, from total exercise beginners to competitive athletes.
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