<http://schema.org/about>
"The wearable device trend is taking off, recording everything from how well you sleep to how quickly you eat. So can it improve your life?"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/health/fitness-well-being/stories/the-quantified-self-are-we-tracking-ourselves-too-much>