Fuel bands are just the beginning for technology and healthcare monitoring. Companies like MC10, will release their first commercial product with Reebok later this year. Called the CheckLight, it fits into a soft skullcap to measure impacts during sports (as an early warning sign of concussions.) http://www.fastcodesign.com/1672217/stamp-on-circuits-could-put-your-phone-on-your-finger
While we have been so focused on the negative aspects of tech monitoring, examples like this allow us to be one step ahead of a catastrophic event.