Perhaps the most interesting thing about wearable technology is its relationship to the wearer. The devices are meant to be with you, on you, a part of you. To understand who and where you are, and offer insights throughout the day that previously you had no knowledge of. No surprise then that one of the first big features of wearable computers focus on health. Sleep, movement and, with a little work, even food. They can tell you calories consumed and calories burned, in the name of making better choices. Today on Episode 55 of The Campfire Project: a look at how and why these bands, bracelets and watches are pushing to tell the story of your body, down to the step.