In 2009, A.J. Jacobs set out on a two-year quest for bodily perfection, chronicled in his book, Drop Dead Healthy. Now, as the healthiest person on the planet, he presents the ultimate plan for total body domination. Follow these nine steps and in just 17 days, you’ll be slimmer, stronger, and smarter than ever.*
Step 1: Gargle Sugar Water
Having trouble pushing yourself at the gym? As I tell my fitness disciples, a spoonful of sugar helps the exercise go down. In a 2009 study from the University of Birmingham, cyclists rinsed their mouths with sugar water for 10 seconds before spitting it out. The result? The garglers significantly improved their performances. The sugar spitters beat out two other groups—cyclists who had downed the sugar water, and cyclists who had rinsed their mouths with water laced with saccharine. Here’s why it works. When the tongue senses the sugar it sends a message to the brain: “Energy boost on the way.” That tricks the body into expending more energy, but without the weight of the water to slow it down.
If you’re uncomfortable with the stares you’ll get from spitting on the gym floor, you can embrace a more bitter alternative. I like to take a few sips of coffee before every workout. Studies have shown that a small amount of pre-workout caffeine improves endurance, partly by slowing down the burning of glycogen, the body’s energy reserves. One thing to note: With coffee, you actually have to swallow.
Step 2: Stop Stretching
The idea that stretching warms you up and prevents injury is, frankly, a bit of a stretch. I haven’t stretched in more than a year, not counting the frequent yawns during the Terrence Malick movies my wife makes me see.
That’s because there’s scant scientific evidence supporting “static stretching”—the kind where you touch your toes and hold for 30 seconds. In fact, recent studies show that static stretching hurts performance, making runners and cyclists slower. Stretching triggers a protective response that tightens the muscles to stop them from overflexing.
If you are going to warm up, most exercise scientists recommend “dynamic stretching,” such as doing lunges, jogging backward, or lifting your knees above your waist while running. Or else you can take Jack LaLanne’s advice and skip warming up altogether. As the late health guru told Outside magazine, “Warming up is the biggest bunch of horsesh*t I’ve ever heard in my life. Fifteen minutes to warm up! Does a lion warm up when he’s hungry? ‘Uh-oh, here comes an antelope. Better warm up.’ No! He just goes out and eats the sucker.”
Step 3: Take Long Walks at Work
So far, this article has taken me 1.5 miles to write, because I’m typing these words while I stride on my treadmill desk. (That sentence alone was good for 14 steps.)
The treadmill desk—which is simply a laptop perched on top of a treadmill—was invented by a Mayo Clinic cardiologist concerned about Americans’ sedentary lifestyle. With good reason. Sitting is as bad for you as a Paula Deen glazed-doughnut bacon burger. It puts us at risk for diabetes, obesity, some types of cancer, and, of course, heart disease. One University of South Carolina study found that big sitters (more than 23 hours a week) had a 64 percent higher chance of fatal heart disease than infrequent sitters (fewer than 11 hours a week).
About 50 million Americans hit the treadmills every year, though the number who use them as workstations is unknown. What we do know: There’s at least one celebrity tread-desker—NBC’s formerly rotund Al Roker. You can now buy professionally-made tread desks for $1,000; enthusiasts have nicknamed them the iPlod.
Step 4: Skip the Heavy Lifting