The Doctor on Your Wrist


TIME

“The unexamined life is not worth living.” So said Socrates, and I’m trying to live up to the philosopher’s credo–in a 21st century way. On my wrist I wear a Jawbone UP24, a rubber bracelet that tracks my steps and calories burned over the course of the day. To make sure I don’t exceed the calories burned with calories consumed, I track my diet with the iPhone app MyFitnessPal, which syncs up with my Jawbone data. The Jawbone bracelet uses a motion sensor to track my sleep time, and the Jawbone app uses algorithms to calculate the hours I spend in light sleep and deep sleep over the course of the night. While I trained for the New York City Marathon, I tracked my runs with the iPhone app RunKeeper, which allowed me to see myself very slowly getting somewhat faster.

That kind of numeric detail probably isn’t what Socrates…

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