Top 10 Marathon Tips

  1. Pace The best way to run your fastest possible race is by starting out at the pace you can maintain the entire race. So run the first mile at the pace you expect to average for the whole marathon. You can’t put running time in the bank. You will end up losing more […]

Exercise and Your Brain

  When I wrote The Inner Runner, one of the things I wanted to address is how running changes us on the inside. Exercise doesn’t just affect the heart and muscles; it also affects the brain. It’s an interesting field of science called neuroplasticity—the ability of the brain to change. Running causes morphological and neurochemical adaptations […]

Insulin, Boomerang, and Run Your Fat Off

I’ve been thinking a lot lately about insulin. Perhaps that’s because my 19-year-old cat, Boomerang, who has been my companion for 14 years, was recently diagnosed with diabetes. Diabetes, which is the most common metabolic disease in the world, is an ironic disease—you have all this fuel (glucose) sitting in your blood, but your muscles […]

Einstein, Pyruvate, and Simplicity

I am often asked how to become a better runner. The answer is simple… and complex. As Albert Einstein said, “Everything should be made as simple as possible, but not simpler.” So, in honor of Einstein (whom I share a birthday with), here is a simple explanation of how to become a better runner. Understand […]

Two Schools of Thought

“There are two schools of thought,” the college coach said to me seven years ago, as I watched the 800-meter runners run 200-meter reps on the track at 800-meter PR pace in November. She was referring to how to train middle distance and distance runners — with lots of speed training or lots of endurance […]

Miles, Metabolism, and Curveballs

As you probably know, I have been deeply interested in the science of athletic performance ever since I was a kid. One of the first scientific questions I had at a young age was how a baseball pitcher throws a curveball. It’s so cool how pitchers exploit the physics of aerodynamics to make the ball […]

Track Races and Finding My Inner Sprinter

I ran in the Summer Nights Track & Field Series last night in San Diego. 1,500 meters. Came through 800 meters in 2:36, only 1 second shy of my plan. Wanted sub 5 minutes. Finished in 4:58.66. These 43-year-old legs ain’t got the speed they used to have, but I executed the way I wanted […]

Why You Need Long Aerobic Exercise

There’s been a lot of talk and promotion in the fitness industry about high-intensity exercise. If you ask me, most of what is behind this talk is money. If we tell people what they want to hear—“all you need is a few minutes of high-intensity exercise per day”—people are more likely to buy. No one […]

Runner Legs, Mitochondria, and Your Mommy’s DNA

Running is all about your legs. When you run, many enzymes are busy at work in your calves, hamstrings, quadriceps, and other muscles, catalyzing numerous chemical reactions to break down carbohydrates and fat for fuel, including the one that breaks the strong bonds of ATP molecules we learned about in high school biology class to […]

Valentine’s Day, Metaphors, and The Best Workout

Happy Valentine’s Day! It’s only fitting to talk about my favorite body part on Valentine’s Day—the heart. From the time we’re teenagers scribbling cartoon hearts on our notebooks, we use the heart as a symbol of love. But it is also the most extraordinary muscle of our body. It is always working, from before we […]

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