The Atlantic - "The Apple Watch May Have a Calorie Problem"
"Diaz, the exercise physiologist, told me that, back when he wore a Fitbit, he’d find himself pacing his apartment in the evening trying to get his steps in. “I just didn’t like the relationship that I was forming with the device and with my life,” he said. He’s not saying that no one should use them, he clarified, but the problem with these devices is that they use external motivation, whereas “what the science tells us is that for long-term behavior change, internal motivation is far better.” Rather than being poked to move by a computer on their wrist, a person should find a way to get in exercise that they enjoy, because then they’ll be more likely to keep it up in the future.
To prove his point, Diaz asked me how I felt after finishing rock climbing or surfing. I gushed about the high. Closing Apple’s rings, or reaching 10,000 steps, might feel good. But it’s nothing like the joy that comes from moving your body simply because you want to."